Question

A x + b x + c x + d x

Answer 1

Resposta:

x(a + b + c + d)

Explicação passo a passo:

$ax+bx+cx+dx\\\\\frac{x}{x} \times \frac{ax+bx+cx+dx}{1} \\\\\frac{x}{1} \times\frac{ax+bx+cx+dx}{x} \\\\x(\frac{ax}{x} +\frac{bx}{x} +\frac{cx}{x} +\frac{dx}{x} )\\\\x(a\frac{x}{x} +b\frac{x}{x} +c\frac{x}{x} +d\frac{x}{x})\\\\x(a(1) +b(1) +c(1) +d(1))\\\\x(a+b+c+d)$