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Popular >

factor x^4-8x^2-9

Solution

factor

x^{4} - 8 x^{2} - 9

Solution

(x^{2} + 1) (x + 3) (x - 3)

Solution steps

x^{4} - 8 x^{2} - 9

Let

u = x^{2}

= u^{2} - 8 u - 9

Factor

u^{2} - 8 u - 9 : (u + 1) (u - 9)

= (u + 1) (u - 9)

Substitute back

u = x^{2}

= (x^{2} + 1) (x^{2} - 9)

Factor

x^{2} - 9 : (x + 3) (x - 3)

= (x^{2} + 1) (x + 3) (x - 3)

Popular Examples

14 x \geq 56

simplify ((12xy^7)/(4x^4y^3))^2 simplify

(\frac{12 x y ^{7}}{4 x ^{4} y ^{3}})^{2}

3 x^{2} - 22 x + 39 = 0

-4T+8-6T=-4-10T+3

- 4 T + 8 - 6 T = - 4 - 10 T + 3

simplify (x*y)^{3/4}simplify

(x \cdot y)^{\frac{3}{4}}

Frequently Asked Questions (FAQ)

What is factor x^4-8x^2-9 ?
The solution to factor x^4-8x^2-9 is (x^2+1)(x+3)(x-3)