8. The roots of a quadratic equation are -7 and 2, Which of the following quadratic equations have these roots? a. x2 + 5x - 14 = 0 b. x2 + 5x + 14 = 0 c. x2 - 5x - 14 = 0 d. x2 - 5x + 14 = 0
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8. The roots of a quadratic equation are -7 and 2, Which of the following quadratic equations have these roots? a. x2
Step-by-step explanation:
Letter A
x=-7 =x+7
x=2 =x-2
(x+7)(x-2)=0
x²+5-14=0