Question

4x³+4x²-x-1 factorisation
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Answer 1

Answer:

25

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$= 4 {x}^{3} + 4 {x}^{2} - x - 1 \\ = 4 {x}^{2} (x - + 1) \times - 1(x + 1) \\ = (4x - 1)(x + 1)$

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