Question

Is my answer correct? Please help me!!! xoxo

(7-2√ 5) (5 + 4√ 5)

Answer 1

\[35 + 20 sq \root 5\]

Answer 2

\[35 + 20 sq \root 5\]

Answer 3

Not quite... you missed some of the parts of the multiplication.

Answer 4

[-5+18\sqrt{5}\]

Answer 5

I got -5 + 18 square root 5....

Answer 6

\[-5+18\sqrt{5}\]

Answer 7

You have to distribute when you multiply...

(7-2√ 5) (5 + 4√ 5) = 7*5 + 7*4√ 5 - 5*2√ 5 - (2√ 5) (4√ 5)

Answer 8

I didn't break it down enough

Answer 9

thank you guys!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :) <3

Answer 10

good work!... glad you solved it... even better that you figured it out on your own :)

Answer 11

thank you jakeypoo!!!! :)@JakeV8