Question

plac sovle this sum plzz....

Answer 1

Bj

PLZZ MARK AS BRAINLESIT

Answer 2

$\large\mathfrak \pink{Solution:-}$

$\underline \mathbb{FORMULA:-}$

$a^{2} -b^{2} = (a-b)(a+b)$

$\underline \mathbb{TO  \: FACTORISE:-}$

$x^{3} - 2x^{2} -x+2$

$\underline \mathbb{BY  \: THE  \: PROBLEM:-}$

$x^{3} - 2x^{2} -x+2\\ \\ \implies x^{2} (x-2)-1(x-2)\\ \\ \implies (x^{2} -1)(x-2)\\ \\ \implies (x^{2} -1^{2} )(x-2)\\ \\ \implies (x-1)(x+1)(x-2)$

$\underline \mathbb{ANSWER:-}$

$\implies \boxed{(x-1)(x+1)(x-2)}$