Question

√2²-2√2y . la asta ma mai ajutati? :)

Answer 1

√2²-2√2y=2-2√2y=2(1-√2y)

Answer 2

$\sqrt{2} ^{2} - 2\sqrt{2}$
2-$2\sqrt{2}$ 
2(1-$\sqrt{2}$ )
La inceput am scos de sub radical,apoi am dat factor comun