Question

equation below

Answer 1

\[(5a+2b)^{2} = ?\] Help pleaase

Answer 2

\[(a+b)^2 = a^2 + 2ab + b^2\]

Answer 3

so in your case:
\[((5a)+(2b))^2 = (5a)^2 + 2(5a)(2b) + (2b)^2\]
Simplify, and that's going to be the answer.

Answer 4

Thank you very much!!!

Answer 5

Oh, another one, is it the same for this?\[(7-5x ^{3})^{2}\]