Question

Simplify: 5 + 2 radical 7 quantity squared

Answer 1

\(\large (5 + \sqrt {7}) ^{2}\) is this the question?

Answer 2

there's a 2 before 7...

Answer 3

yes there is

Answer 4

so \(\large (5 + 2\sqrt {7})^{2}\) is the problem right??

Answer 5

yes it is

Answer 6

you can use good ol FOIL

\( (5 + 2\sqrt 7)(5+ 2\sqrt 7) = (5)(5) + 2(5)(2\sqrt 7) + (2 \sqrt 7)^2\)

can you try solving that now?

Answer 7

no lol

Answer 8

what is 5 x 5?