Factorise 4x³+8x²-x-2
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Answered by
0
Answer:
4x^3 =8x^2 - x-2
=4x^2(x+2) - 1(x+2)
=(x+2) (4x^2 - 1 ) {answer}
Answered by
1
Answer :
=> 4x³ + 8x² - x - 2
Therefore, x + 2 is the factor.
=> - 2 | 4 8 -1 -2 |
| -8 0 2 |
____________
4 0 -1 0
=> (x + 2) (4x² - 1)
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