Question

8x^2–2x–1 factorize ​

Answer 1

Answer:

For a polynomial of the form ax2+bx+c a x 2 + b x + c , rewrite the middle term as a sum of two terms whose product is a⋅c=8⋅−1=−8 a ⋅ c = 8 ⋅ - 1 = - 8 and whose sum is b=−2 . Factor −2 - 2 out of −2x - 2 x . Factor out the greatest common factor from each group. Group the first two terms and the last two terms.

Step-by-step explanation:

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Answer 2

Answer:

$8 {x}^{2} - 2x - 1 \\ 8 {x}^{2} - 4x + 2x - 1 \\ 4x(2x - 1) + 1(2x - 1) \\ (2x - 1)(4x + 1)$