Question

Se a=√4x, b=√25x e c=√9x, calcule a-b+c

Answer 1

Resposta:

10x

Explicação passo-a-passo:

$a+b+c=\sqrt{4}x+\sqrt{25}x+\sqrt{9}x$

$=2x+\sqrt{25}x+\sqrt{9}x\\=2x+5x+\sqrt{9}x\\=2x+5x+3x\\=10x$