en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

8x^3-x^2<9-72x

Solution

8 x^{3} - x^{2} < 9 - 72 x

Solution

x < \frac{1}{8}

+2

Interval Notation

(- \infty, \frac{1}{8})

Decimal Notation

x < 0.125

Solution steps

8 x^{3} - x^{2} < 9 - 72 x

Rewrite in standard form

8 x^{3} - x^{2} + 72 x - 9 < 0

Factor

8 x^{3} - x^{2} + 72 x - 9 : (8 x - 1) (x^{2} + 9)

(8 x - 1) (x^{2} + 9) < 0

Identify the intervals

x < \frac{1}{8}

Popular Examples

x^{2} - 5 x - 7 = 0

factor x^3-4x^2-x+4 factor

x^{3} - 4 x^{2} - x + 4

0=x+23*5-4.9*5^2

0 = x + 23 \cdot 5 - 4.9 \cdot 5^{2}

factor 11c^2-7c^3 factor

11 c^{2} - 7 c^{3}

simplify (2y^2)(4xy^3)+(3xy^4)(5y)simplify

(2 y^{2}) (4 x y^{3}) + (3 x y^{4}) (5 y)

Frequently Asked Questions (FAQ)

What is 8x^3-x^2<9-72x ?
The solution to 8x^3-x^2<9-72x is x< 1/8