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Popular >

factor x^4+x^2-72

Solution

factor

x^{4} + x^{2} - 72

Solution

(x^{2} - 8) (x^{2} + 9)

Solution steps

x^{4} + x^{2} - 72

Let

u = x^{2}

= u^{2} + u - 72

Factor

u^{2} + u - 72 : (u - 8) (u + 9)

= (u - 8) (u + 9)

Substitute back

u = x^{2}

= (x^{2} - 8) (x^{2} + 9)

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Frequently Asked Questions (FAQ)

What is factor x^4+x^2-72 ?
The solution to factor x^4+x^2-72 is (x^2-8)(x^2+9)