What is the vertex of the function 7x^2 -28x-60?

a. (2,-88)
b. (3,56)
c. (2,88)
d. (3,-56)

Step-by-step explanation:

7x²-28x-60=7(x²-4x+4-4)-60

=7(x²-4x+4)-28-60

=7(x-2)²-88

vertex is (2,-88)

8y^50

step-by-step explanation:

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb