en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor x^4-7x^2-8

Solution

factor

x^{4} - 7 x^{2} - 8

Solution

(x^{2} + 1) (x^{2} - 8)

Solution steps

x^{4} - 7 x^{2} - 8

Let

u = x^{2}

= u^{2} - 7 u - 8

Factor

u^{2} - 7 u - 8 : (u + 1) (u - 8)

= (u + 1) (u - 8)

Substitute back

u = x^{2}

= (x^{2} + 1) (x^{2} - 8)

Popular Examples

simplify 1/2 x+x simplify

\frac{1}{2} x + x

simplify 1/(2/x)simplify

\frac{1}{\frac{2}{x}}

7 \div \frac{2}{3}

simplify ln(sqrt(x/y))simplify

ln (\frac{x}{y})

simplify (2/3)^2*(2/3)^2 simplify

(\frac{2}{3})^{2} \cdot (\frac{2}{3})^{2}

Frequently Asked Questions (FAQ)

What is factor x^4-7x^2-8 ?
The solution to factor x^4-7x^2-8 is (x^2+1)(x^2-8)