Question

Solve
4d(2d-9)

1) 8d-36d
2) -d
3) -28d^2
4) 8d^2-36d
I am beyond confused. I think the answer is 4 because combining like terms you would get the 8. Then multiplying 4 by 9 you would get the 36 but I am not sure. Please help!

Answer 1

try to multiply the terms

Answer 2

the like terms

Answer 3

You need to distribute 4d to both 2d and -9 so: 4d*2d and -9*4d
8d^2-36d

Answer 4

what is 4d X 2d

Answer 5

?

Answer 6

thats the original problem

Answer 7

so answer what is 4 X2 =?

Answer 8

the answer is 4 you are correct

Answer 9

Hockeychick23 thank you so much for explaining it. So if I multiply the 2d and the 4d I should get 8d^2 then multiple the 4d and the -9 to get -36.

Answer 10

yeah

Answer 11

anytime :) and yep thats correct :)