en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor x^4+15x^2-16

Solution

factor

x^{4} + 15 x^{2} - 16

Solution

(x + 1) (x - 1) (x^{2} + 16)

Solution steps

x^{4} + 15 x^{2} - 16

Let

u = x^{2}

= u^{2} + 15 u - 16

Factor

u^{2} + 15 u - 16 : (u - 1) (u + 16)

= (u - 1) (u + 16)

Substitute back

u = x^{2}

= (x^{2} - 1) (x^{2} + 16)

Factor

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

= (x + 1) (x - 1) (x^{2} + 16)

Popular Examples

-3-6(4x+6)>-111

- 3 - 6 (4 x + 6) > - 111

factor 27x^5-54x^4+15x^3 factor

27 x^{5} - 54 x^{4} + 15 x^{3}

simplify e^{-i}simplify

e^{- i}

simplify 90-4500/50 simplify

90 - \frac{4500}{50}

factor 9x^4-4x^2 factor

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

Frequently Asked Questions (FAQ)

What is factor x^4+15x^2-16 ?
The solution to factor x^4+15x^2-16 is (x+1)(x-1)(x^2+16)