Question

Find the missing coefficient.
(4d - 4)(3d - 2)= 12d^2 + ?d +8

Answer 1

you have \[\large (4d-4)(3d-2)\] use the foil method. \[\large 4d(3d-2)-4(3d-2)\]\[\large (4d)(3d)-(4d)(2)-(4)(3d)-(4)(-2)\]multiply it all out, you should get whatever's on the right side. \[\large 12d^2-8d-12d+8\]

Answer 2

now all you have to do is simplify that expression and you'll find your missing coefficient.

Answer 3

so how do you simplify

Answer 4

what is -8-12?

Answer 5

hint: add both these numbers up and put a negative infront.

Answer 6

-20

Answer 7

there you go :D you found your answer.