Question

Descompuneti in factori .a). (x+1) la a doua +3(x+1). B)4(x-2) la a doua -3(2-x), c)5(x+1) la a doua -4 x(x+1)- x-1

Answer 1

x patrat +2*x*1 +1 patrat + 3x+3
x patrat + 2x + 3x+4
x patrat +5x +4

Answer 2

x la pătrat + 2x +1 +3x +3= x la pătrat + 5x +4 = (îl spargem pe 5x) x la pătrat +x+4x +4= x(x+1) +4 (x+1)= (x+1)(x+4)