Question

Which of the following is a quadratic equation that has the roots x = 5 and x = 6?

x2 − 11x = −30
x2 − 11x = 30
x2 + 11x + 30 = 0
x2 + 11x = 30

Answer 1

x2-11=-30


I hope this will help you

Answer 2

x2 - 11x = -30

Explanation:

x^2 - 11x = -30

add 30 to the left to make it = to zero

x^2 - 11x + 30 = 0

factor

(x-5)(x-6) = 0

check by FOIL

x times x = x^2

x times -6 = -6x

x times -5 = -5x

-6 + -5 = 11x

-5 times -6 = 30