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Popular >

factor x^4+15x^2-76

Solution

factor

x^{4} + 15 x^{2} - 76

Solution

(x + 2) (x - 2) (x^{2} + 19)

Solution steps

x^{4} + 15 x^{2} - 76

Let

u = x^{2}

= u^{2} + 15 u - 76

Factor

u^{2} + 15 u - 76 : (u - 4) (u + 19)

= (u - 4) (u + 19)

Substitute back

u = x^{2}

= (x^{2} - 4) (x^{2} + 19)

Factor

x^{2} - 4 : (x + 2) (x - 2)

= (x + 2) (x - 2) (x^{2} + 19)

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Frequently Asked Questions (FAQ)

What is factor x^4+15x^2-76 ?
The solution to factor x^4+15x^2-76 is (x+2)(x-2)(x^2+19)