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Popular >

factor x^4-2x^2-15

Solution

factor

x^{4} - 2 x^{2} - 15

Solution

(x^{2} + 3) (x^{2} - 5)

Solution steps

x^{4} - 2 x^{2} - 15

Let

u = x^{2}

= u^{2} - 2 u - 15

Factor

u^{2} - 2 u - 15 : (u + 3) (u - 5)

= (u + 3) (u - 5)

Substitute back

u = x^{2}

= (x^{2} + 3) (x^{2} - 5)

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Frequently Asked Questions (FAQ)

What is factor x^4-2x^2-15 ?
The solution to factor x^4-2x^2-15 is (x^2+3)(x^2-5)