Question

Plzzz help.........


1) x³+x²-x-1

2) X³+X²+X+1​

Answer 1

Answer:

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

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

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

$= > \: (x - 1)(x + 1)(x + 1)$

$2) \: {x}^{3} + {x}^{2} + x + 1$

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

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

$= > \: (x + 1)(x - 1)(x + 1)$

Answer 2

Step-by-step explanation:

2.

x³+x²+x+1

taking x²as common

=x²(x+1)+1(x+1)

=(x+1)(x²+1)

hence this is factorised

1.

x³+x²-x-1

taking x² as common

= x²(x+1)-1(x+1)

=(x+1)(x²-1)

hence it is factorised

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