Math, asked by heersoni1226, 10 months ago

Factorise
$2x^{2} - x - 1$

Answers

Answered by Anonymous

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Answer:

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

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Answered by Anonymous

$\sf {2x}^{2} - x - 1 \\ \sf{2x}^{2} - 2x + x - 1 \\ \sf 2x(x - 1) + 1(x - 1) \\ \sf \red{(2x - 1)(x - 1)}$

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