en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor x^4-x^2-20

Solution

factor

x^{4} - x^{2} - 20

Solution

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

Solution steps

x^{4} - x^{2} - 20

Let

u = x^{2}

= u^{2} - u - 20

Factor

u^{2} - u - 20 : (u + 4) (u - 5)

= (u + 4) (u - 5)

Substitute back

u = x^{2}

= (x^{2} + 4) (x^{2} - 5)

Popular Examples

simplify 5\times 10 simplify

5 \times 10

simplify \sqrt[3]{7.9}simplify

simplify (m^8)/(m^2)simplify

\frac{m ^{8}}{m ^{2}}

factor 48x-42 factor

48 x - 42

expand (x+6)(x-1)(x-4)expand

(x + 6) (x - 1) (x - 4)

Frequently Asked Questions (FAQ)

What is factor x^4-x^2-20 ?
The solution to factor x^4-x^2-20 is (x^2+4)(x^2-5)