Question

ex 11 punctu e)si i) va rogggg!!

Answer 1

Răspuns:

$e) \: {x}^{2} + x - 2 = x {}^{2} + 2x - x - 2 = (x + 2)(x - 1)$

$i) \: {x}^{2} - x - 2 = {x}^{2} + x - 2x - 2 = (x + 1)(x - 2)$

Answer 2

$e)~x^2+x-2=x^2-x+2x-2=x(x-1)+2(x-1)=(x-1)(x+2)\\\\ i)~x^2-x-2=x^2-2x+x+2=x(x-2)+1(x+2)=(x-2)(x+1)$