Question

Simplify the following: [(2h + 2d)(h + 2d) - (h + d)(h - 2d)] + (2h - d)(2h + d)

5h^2 + 7hd + 5d^2

5h^2 - 7hd + 5d^2

5h^2 + 5hd + d^2

5h^2 - 5hd + d^2

Answer 1

@mathstudent55

Answer 2

im saying its d?

Answer 3

FOIL out everything and collect like terms! :)

Answer 4

i did but im confused

Answer 5

The first one is right

Answer 6

Can you try working it out?

Answer 7

the first answer

Answer 8

Yes, 5h^2+7hd+5d^2