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The Quadratic Eq;n , when plotted on gaph paper, will reveal a parabola.

This patrabola can intersect the x-axis in two places, just touch the x-axis or miss it altogether.

The roots of a quadratic eq;n are the point(s) were the parabola intersects the x-axis.

If is intersects at two points, then there are two roots. If it just touches the x-axis, then there is one root only. If it does not touch the x-axis, then the eq'n remains unresolved.

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lenpollock

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βˆ™ 14y ago

The root of any equation is a number which ... when substituted for the variable ...

makes the equation a true statement.

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Q: What is a root of a quadratic equation?
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Related questions

Write an algorithm to find the root of quadratic equation?

Write an algorithm to find the root of quadratic equation


If the discriminant of a quadratic equation is zero and one root of the equation is 5 what is the value of the other root?

It too will have a value of 5


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How you solve an equation that doesn't factor is to plug a quadratic equation's format; ax2+bx+c into the quadratic formula which is x=-b+square root to (b2-4ac)/2a.


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Radicand


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The answer to the question, as stated, is that the other root could be anything. However, if all the coefficients of the quadratic equation are real numbers, then the other root is 1 minus 3i.


What is the determinant of a quadratic function?

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What is the solution to the quadratic equation x2 plus 10x plus 25 equals 7?

Using the quadratic equation formula: x = -5-/+ the square root of 7


Solve this quadratic equation using the quadratic formula 2x2 - 10x plus 7 equals 0?

2x2-10+7 = 0 Solving the quadratic equation using the quadratic formula will give you two solutions and they are: x = (5 - the square root of 11)/2 or x = (5 + the square root of 11)/2


What is the root of a quadratic equation?

The roots are (if the equation is of the form Ax2 + Bx + C = 0 ((-B) + Square Root of (B2 - 4xAxC)) / 2xA and ((-B) - Square Root of (B2 - 4xAxC)) / 2xA


Discovered quadratic equation?

Quadratic equation


Why the discriminant of a quadratic is useful in algebra?

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What is the number called under the square root when the number is negative in the quadratic equation?

The term inside the square root symbol is called the radicand. There isn't a specific term for it based on its sign; whether it's positive or negative, it's still the radicand.I'm a little confused by your reference to the quadratic equation.If the radicand is negative, the root is an imaginary number, though that doesn't specifically have anything to do with the quadratic equation in particular.If the quantity b2 - 4ac is negative in the quadratic equation, the root of the quadratic equation is either complex or imaginary depending on whether or not b is zero.---------------------------Thank you to whoever answered this first; you saved me a bit of trouble explaining this to the asker :)However, in the quadractic equation, the number under the radical is called the discriminant. This determines the number of solutions of the quadratic. If the radicand is negative, this means that there are no real solutions to the equation.