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Popular >

factor 2x^4-x^2-1

Solution

factor

2 x^{4} - x^{2} - 1

Solution

(2 x^{2} + 1) (x + 1) (x - 1)

Solution steps

2 x^{4} - x^{2} - 1

Let

u = x^{2}

= 2 u^{2} - u - 1

Factor

2 u^{2} - u - 1 : (2 u + 1) (u - 1)

= (2 u + 1) (u - 1)

Substitute back

u = x^{2}

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

Factor

x^{2} - 1 : (x + 1) (x - 1)

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

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Frequently Asked Questions (FAQ)

What is factor 2x^4-x^2-1 ?
The solution to factor 2x^4-x^2-1 is (2x^2+1)(x+1)(x-1)