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Popular >

factor x^8-3x^4-18

Solution

factor

x^{8} - 3 x^{4} - 18

Solution

(x^{4} + 3) (x^{4} - 6)

Solution steps

x^{8} - 3 x^{4} - 18

Let

u = x^{2}

= u^{4} - 3 u^{2} - 18

Factor

u^{4} - 3 u^{2} - 18 : (u^{2} + 3) (u^{2} - 6)

= (u^{2} + 3) (u^{2} - 6)

Substitute back

u = x^{2}

= (x^{4} + 3) (x^{4} - 6)

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Frequently Asked Questions (FAQ)

What is factor x^8-3x^4-18 ?
The solution to factor x^8-3x^4-18 is (x^4+3)(x^4-6)