What quadratic has roots x=8 and x= -5
x^2+3x-40
x squared minus 3x -40
x squared +13 x +40
x squared -13 x +40

So the correct option is X squared -3 X +40

Step-by-step explanation:

If a polynomial has roots x=8 and x=-5, then we know that the factorized form is:

(x-8)(x+5)

So, to find the polynomial we need to expand the polynomials:

(x-8)(x+5) = (x^2 +5x - 8x + 40) = x^2 -3x + 40

points are handed out whenever you post answers.

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the lesson to learn here is that you shouldn't worry about points or rank. chances are, no matter how good an answer you may provide, your efforts will go mostly unnoticed unless you focus on the newest/most active questions that get posted.

europa2433

europa2433

step-by-step explanation: