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you use difference of squares

ex. X^2-4 can be factored out to (x+2)(x-2)

you now have the zeros in your equation much easier

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Q: How do you solve quadratic equations by finding square roots?
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What is the graph of a quadratic formula?

In general, quadratic equations have graphs that are parabolas. The quadratic formula tells us how to find the roots of a quadratic equations. If those roots are real, they are the x intercepts of the parabola.


What is the method which is NOT a procedure in finding the roots of quadratic function?

Dividing by the square root of minus 1 and multiplying by the mass of a mature Adele penguin travelling at 'c' would not be a method for finding the roots of quadratic functions.


What are the symbols used in quadratic equations?

Addition, subtraction signs, brackets, squares and powers, square roots and roots, fractions. Random variables are also used, like x.


What is the quadratic formula used for?

The quadratic formula is used all the time to solve quadratic equations, often when the factors are fractions or decimals but sometimes as the first choice of solving method. The quadratic formula is sometimes faster than completing the square or any other factoring methods. Quadratic formula find: -x-intercept -where the parabola cross the x-axis -roots -solutions


What is the difference between quadratic function and quadratic formula?

A quadratic function is a function where a variable is raised to the second degree (2). Examples would be x2, or for more complexity, 2x2+4x+16. The quadratic formula is a way of finding the roots of a quadratic function, or where the parabola crosses the x-axis. There are many ways of finding roots, but the quadratic formula will always work for any quadratic function. In the form ax2+bx+c, the Quadratic Formula looks like this: x=-b±√b2-4ac _________ 2a The plus-minus means that there can 2 solutions.

Related questions

Why do you use square roots to solve quadratic equations?

Because it's part of the quadratic equation formula in finding the roots of a quadratic equation.


What are the 4 quadratic equations?

actoring, using the square roots, completing the square and the quadratic formula.


What form is the solving for the roots of quadratic equations?

Using the quadratic equation formula or completing the square


What is the graph of a quadratic formula?

In general, quadratic equations have graphs that are parabolas. The quadratic formula tells us how to find the roots of a quadratic equations. If those roots are real, they are the x intercepts of the parabola.


What is the difference between a radical equation and a quadratic equation?

radical equations have sq roots, cube roots etc. Quadratic equations have x2.


What is the method which is NOT a procedure in finding the roots of quadratic function?

Dividing by the square root of minus 1 and multiplying by the mass of a mature Adele penguin travelling at 'c' would not be a method for finding the roots of quadratic functions.


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 are quadratic equations with real roots?

If the discriminant of the quadratic equation is zero then it will have 2 equal roots. If the discriminant of the quadratic equation is greater than zero then it will have 2 different roots. If the discriminant of the quadratic equation is less than zero then it will have no roots.


How is solving a quadratic equation the same as finding its roots?

That is what roots mean!


What is the flow chart to find the roots of quadratic equations?

ax+b=)


Is it possible for two different quadratic equations to have the same roots?

yes


What are the symbols used in quadratic equations?

Addition, subtraction signs, brackets, squares and powers, square roots and roots, fractions. Random variables are also used, like x.