Question

Uzupełnij :

a) (a + b) x^{3} + (a + b) x^{2} = (a+b) x (..........................)

b) (x+1) x^{2} + (x+1)(1-x) + (x+1)^{2} = (x+1) (.......................)

Answer 1

a)  (a + b) x^{3} + (a + b) x^{2} = (a+b) x (x^2+x)

b)  (x+1) x^{2} + (x+1)(1-x) + (x+1)^{2} = (x+1) (x^2+1-x+x+1)=(x+1)(x^2+2)