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

a

step-by-step explanation:

i dont get the question

step-by-step explanation: