Question

9) Scoate factor comun, după model:
i a) a(x+1)+b(x + 1); b) (x + 2)(x - 3) +4(x + 2); c) a(x + y) + b(x + y); d) (x + 3)2 – (x+3);
e) (x - 2)2 – (x - 2)
Model: a(x + 1) + b(x + 1) = (x + 1)(a +b).

Vreau doar d si e Repedee dau coroana​

Answer 1

Răspuns:

a) ( x+1)( a+b)

b)

(x+2) ( x-3+4)= (x+2) (x+1)

c) (a+b)( x+y)

d)

(2-1)( x+3)= 1•(x+3)= x+3

e) (2-1) (x-2)= x-2