Question

me ajudem pfv (X+√2)²

Answer 1

Oie, Td Bom?!

$= (x + \sqrt{2} ) {}^{2}$

$= x {}^{2} + 2x \sqrt{2} + \sqrt{2} {}^{2}$

$= x {}^{2} + 2 \sqrt{2} x + 2$

Att. Makaveli1996