Question

how to solve (2/3x+4/5y)(2/3x+4/5y)

Answer 1

GOOD MORNING USER!

$we \: can \: use \: (a + b \}^{2} = {a}^{2} + {b}^{2} + 2ab$
I HOPE IT HELPS YOU!

Answer 2

1 is the answer.

Hint:

Let us assume: 2/3x+4/5y = x

so, (2/3x+4/5y)(2/3x+4/5y) = x /x = 1