Scoateti factor comun:
a) 5x-10y
e) (x-1)(2x+3)+(3x-2)(x-1)
g) a(x-√2)-b(x-√2)+c(√2-x)

[tex]a)5x - 10y = 5(x - 2y)[/tex]

[tex]e)(x - 1)(2x + 3) + (3x - 2)(x - 1)[/tex]

[tex] = (x - 1)(2x+ 3 + 3x - 2)[/tex]

[tex] = (x - 1)(5x + 1)[/tex]

[tex]g)a(x - \sqrt{2} ) - b(x - \sqrt{2} ) + c( \sqrt{2} - x)[/tex]

[tex] = (x - \sqrt{2} )(a - b - c)[/tex]

a) = 5(x-2y)
e) = (x-1)(2x+3+3x-2)=(x-1)(5x+1)
g) = (x-rad2)(a-b-c).