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Popular >

factor x^4-5x^2+4

Solution

factor

x^{4} - 5 x^{2} + 4

Solution

(x + 1) (x - 1) (x + 2) (x - 2)

Solution steps

x^{4} - 5 x^{2} + 4

Let

u = x^{2}

= u^{2} - 5 u + 4

Factor

u^{2} - 5 u + 4 : (u - 1) (u - 4)

= (u - 1) (u - 4)

Substitute back

u = x^{2}

= (x^{2} - 1) (x^{2} - 4)

Factor

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

= (x + 1) (x - 1) (x^{2} - 4)

Factor

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

= (x + 1) (x - 1) (x + 2) (x - 2)

Popular Examples

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\frac{4.7298}{2} \cdot \frac{1}{2 π} \cdot \frac{60}{1}

7/9 (5/11-5/8+1/2)

\frac{7}{9} (\frac{5}{11} - \frac{5}{8} + \frac{1}{2})

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Frequently Asked Questions (FAQ)

What is factor x^4-5x^2+4 ?
The solution to factor x^4-5x^2+4 is (x+1)(x-1)(x+2)(x-2)