Question

Descompuneti in factori:a) 5x-5y= b) 7x^2+7x= . c) 12x^2y-8xy= . d) 15x^3-5x^2 . e) 3a ^3b^2+6a^2b^3-9a^2b^2= . f) 6x^2y^4-2xy^3+14x^3y^2= . g) a( x+1)-b(x+1)= . h) a(x-3)-b( x-3)+x-3= . i) (2x-3)(x-5)-3(x-5)^2= . k) (x-y)(2x-y+z)+(y-x)(x-y+z)= .

Answer 1

a)5(x-y)
b)7(x^2-x)
c)simplificam 12 cu 3 si 8 cu 2.
si va fi4x^2y-4xy=4(xla a 2-xy)