en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor b^4-7b^2-144

Solution

factor

b^{4} - 7 b^{2} - 144

Solution

(b^{2} + 9) (b + 4) (b - 4)

Solution steps

b^{4} - 7 b^{2} - 144

Let

u = b^{2}

= u^{2} - 7 u - 144

Factor

u^{2} - 7 u - 144 : (u + 9) (u - 16)

= (u + 9) (u - 16)

Substitute back

u = b^{2}

= (b^{2} + 9) (b^{2} - 16)

Factor

b^{2} - 16 : (b + 4) (b - 4)

= (b^{2} + 9) (b + 4) (b - 4)

Popular Examples

2 k^{2} + 2 = 4 k

simplify-7/2*1/6 simplify

- \frac{7}{2} \cdot \frac{1}{6}

simplify (1/2)^2+(1/4)^2 simplify

(\frac{1}{2})^{2} + (\frac{1}{4})^{2}

7^{p+2}<= 13^{5-p}

7^{p + 2} \leq 1 3^{5 - p}

simplify 4*4/3 simplify

4 \cdot \frac{4}{3}

Frequently Asked Questions (FAQ)

What is factor b^4-7b^2-144 ?
The solution to factor b^4-7b^2-144 is (b^2+9)(b+4)(b-4)