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Popular >

factor x^4+7x^2-18

Solution

factor

x^{4} + 7 x^{2} - 18

Solution

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

Solution steps

x^{4} + 7 x^{2} - 18

Let

u = x^{2}

= u^{2} + 7 u - 18

Factor

u^{2} + 7 u - 18 : (u - 2) (u + 9)

= (u - 2) (u + 9)

Substitute back

u = x^{2}

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

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Frequently Asked Questions (FAQ)

What is factor x^4+7x^2-18 ?
The solution to factor x^4+7x^2-18 is (x^2-2)(x^2+9)