Question

Urgent !!!Va rog rezolvarea totala a ex .dau 55 de puncte​

Answer 1

1.

x^2 + 4x + 3x + 12 =

x(x+4) + 3(x+4) =

(x+4)(x+3)

2.

x^2 + 3x + 5x + 15 =

x(x+3) + 5(x+3) =

(x+3)(x+5)

3.

x^2 + 2x + 9x + 18 =

x(x+2) + 9(x+2) =

(x+2)(x+9)

4.

x^2 + 3x + 2x + 6 =

x(x+3) + 2(x+3) =

(x+3)(x+2)

5.

x^2 + 2x + 7x + 14 =

x(x+2) + 7(x+2) =

(x+2)(x+7)

6.

x^2 + x + 6x + 6 =

x(x+1) + 6(x+1) =

(x+1)(x+6)