Question

Descompuneti in factori:
 a) $x^{2}$ + 2x-3=
 b) $x^{2}$ - x-2=
 c) $x^{2}$ +x-6=

Answer 1

a)x²+3x-x-3=  x(x+3) -(x+3)= (x+3)(x-1)

b)x²-2x+x-2= x(x-2)+(x-2)= (x-2)(x+1)

c)x²+3x -2x -6= x(x+3) -2(x+3)= (x+3)(x-2)