Question

please give me answers ​

Answer 1

The answer is given below.

Answer 2

(1) 2√2*3√2

=2*3(√2*√2)

=6(√2)^2

=6*2

=12

(2) (27)^1/3

=(3^3)^1/3

=3

(3) (x+2y)^2

=(x^2+(2y)^2+2*x*2y)

=(x^2+4y^2+4xy)