Question

Descompuneti in factori:x patrat+7 x -18

Answer 1

x²+7x+18=x²+9x-2x+18=x(x-9)-2(x-9)=(x-2)(x-9)

Answer 2

$x^{2}+7x-18$
$x^{2}+9x-2x-18$
$x\cdot(x+9)-2(x+9)$
$(x-2)\cdot(x+9)$