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If you aren't dealing with algebra, such as x2+3x+21, then completing the square wont be able to solve the porblem, however if you are using algebra, and you cannot factorise, then completing the square will always work

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โˆ™ 2011-07-13 15:37:00
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Q: Is there a math problem that cannot be solved by completing the square?
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Related questions

How do you solve 2x squared plus x plus 2 equals 0 by completing the square?

It cannot be solved because the discriminant of the quadratic equation is less than zero


A square - b square equals 1?

A single equation such as the one in the question cannot be solved.


Can all quadratics be solved by completing the square?

Completing the square is one method for solving a quadratic equation. A quadratic equation can also be solved by factoring, using the square roots or quadratic formula. Solving quadratic equations by completing the square will always work when solving quadratic equations-You can also use division or even simply take a GCF, set the quantities( ) equal to zero, and subtract or add to solve for the variable


What does it mean in algebra to complete the square?

A quadratic equation can be solved by completing the square which gives more information about the properties of the parabola than with the quadratic equation formula.


How do you solve x squared minus x minus 12by completing squares?

Expression: x^2 -x -12 Completing the square: (x -0.5)^2 -12.25


What is the third step in solving this equation by completing the square?

Completing the square is one method for solving a quadratic equation. A quadratic equation can also be solved by several methods including factoring, graphing, using the square roots or the quadratic formula. Completing the square will always work when solving quadratic equations and is a good tool to have. Solving a quadratic equation by completing the square is used in a lot of word problems.I want you to follow the related link that explains the concept of completing the square clearly and gives some examples. that video is from brightstorm.


Solve by completing the square x2 14x -24?

the problem is not proper to slove. I just want to suggest to follow the related link that explains the concept of completing the square clearly.


Who found the quadratic formula?

It comes from completing the square of a general quadratic. Many people believe Brahmagupta first solved this in 628 AD.


How do you solve surd?

Surds are irrational square root numbers that cannot be solved but they can be simplified. For example the square root of 12 can be simplified to 2 times the square root of 3.


What is -5 square root of X -15?

It is -5*sqrt(X - 15) which is an expression which cannot be simplified nor solved.


What is X cubed plus plus X square root of 3?

It is an expression, in a variable x. Since it is not an equation, it cannot be solved.


What is an example of completing the square?

Completing the square would be the same as "Finding the square root" So an example would be 16. 16 is a perfect square so it would reduce to 4.


Can a trapezoid and a square be congruent?

No, they cannot. Sorry! Hope I helped you figure out your math problem!


What are Real world applications with completing the square?

NO


Is there a math problem that can be solved by completing the square AND the quadratic formula?

The roots of any quadratic equation can be found by either method. Which of the two you use may depend on nothing more than your preferences (or exam instructions!). There is never a need to use both methods since if you have used one you have the answer so why bother with the other.


What is completing the square used for?

Completing the square is a method used to solve a quadratic function. This is a handy method when there are two instances of the same variable in the function.


How do you derived quadratic function?

I believe by completing the square.


What is a square corner?

A square cannot be a corner and a corner cannot be a square.


The square of r increased by a quantity that is fifty times the cube of k?

The square of r increased by a quantity that is fifty times the cube of k cannot be solved any further than it has been put in the question.


What equation results from completing the square and then factoring?

A quadratic equation


Is 5625 a perfect square?

Yes, 5625 is a perfect square. Its square root is 75.


The square of r increased by a quantity that is fifty times the cube of k-?

The square of r increased by a quantity that is fifty times the cube of k can be written as r squared + 50 (k cubed). It cannot be solved any further.


Solve x2 plus 18x plus 4 equals 0?

This quadratic equation which will have two solutions can be solved by completing the square or by using the quadratic equation formula.Completing the square:x2+18x+4 = 0(x+9)2+4 = 0(x+9)2+4-81 = 0(x+9)2 = 77x+9 = + or - the square root of 77x = -9 + or - the square root of 77If you're not too sure about the procedure of completing the square your maths tutor should be familiar with it.


Completing the square in algebra?

X+y^2+2y=-1


Solving quadratic equation by completing the square?

Yes it is quite possible