Question

@hartnn I got another similar one if you can please help!

Answer 1

square both sides, what u get ?

Answer 2

1+3x+3=7x+2

Answer 3

Right?

Answer 4

no, for left side, u need to use
\(\large \color{blue}{(a+b)^2=a^2+2ab+b^2}\)

Answer 5

right side is correct.

Answer 6

hmm, so what is a and b?

Answer 7

that is a general formula, in this case
a=1, b=\(\sqrt{3x+3}\)

Answer 8

what am i doing wrong?