Question

Find the factors
(i) 2x^ + x - 1​

Answer 1

Answer:

The factors are -1/2 and -1

Answer 2

Answer:

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

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