Question

Ajudem
-Fator comum em evidencia

a)x^2+x

b)x^50+x^51

c)16x^2+20y

e)15x^5-10x^3+25x^2-5x^4

f) 7(x+y)-z(x+y)

g)ab/8 +ab^2/4 - ab^2/2

Answer 1

vamos lá...

$a) \\ x^2+x=x(x+1) \\ b) \\ x^{50}+x^{51}=x^{50}(1+x) \\ c) \\ 16x^2+20y=4(4x^2+5y) \\ e) \\ 15x^5-10x^3+25x^2-5x^4=5x^2(3x^3-2x+5-x^2) \\ f) \\ 7(x+y)-z(x+y)=(x+y)(7-z)$ 

$f) \\ \frac{ab}{8} + \frac{ab^2}{4} - \frac{ab^2}{2} = \frac{ab}{2} ( \frac{1}{4} + \frac{b}{2} - b)$