Math, asked by priya77481, 4 months ago

X(x2-1)+ 7(x2-1): factorise

Answers

Answered by mathdude500

1

Answer:

$x( {x}^{2} - 1) + 7( {x}^{2} - 1) \\ = ( {x}^{2} - 1)(x + 7) \\ = (x - 1)(x + 1)(x + 7)$

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