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15. Which quadratic equation has roots -2 and 3? *Mark only one oval.

15. Which quadratic equation has roots -2 and 3? *Mark only one oval.-example-1
User Mattpr
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1 Answer

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9 votes

Step-by-step explanation

We are asked to determine the quadratic equation that has -2 and 3 as its roots

To do so, we will make use of the fact that

if -2 is one of its roots, then


\begin{gathered} x=-2 \\ (x+2)\text{ is a factor} \end{gathered}

Also


\begin{gathered} x=3 \\ (x-3)\text{ is a factor} \end{gathered}

Thus

we have


(x+2)(x-3)=x^2-3x+2x-6=x^2-x-6

Therefore, the answer is

15. Which quadratic equation has roots -2 and 3? *Mark only one oval.-example-1
User Chanda Korat
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