Question

How do you simplify `(2sqrt7+4)^2`?

Answer 1

`44+ 16sqrt7`

To simplify use the algebraic identity `(a+b)^2`= `a^2+2ab +b^2`.
It would give `(2sqrt7)^2 +2 (2sqrt7)(4) + (4)^2 = 44+16sqrt7`