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Popular >

x3+2x2-8<0

Solution

x 3 + 2 x 2 - 8 < 0

Solution

x < \frac{8}{7}

+2

Interval Notation

(- \infty, \frac{8}{7})

Decimal Notation

x < 1.14285 \dots

Solution steps

x \cdot 3 + 2 x \cdot 2 - 8 < 0

Multiply the numbers:

2 \cdot 2 = 4

3 x + 4 x - 8 < 0

Add similar elements:

3 x + 4 x = 7 x

7 x - 8 < 0

Move

8

to the right side

7 x < 8

Divide both sides by

7

x < \frac{8}{7}

Popular Examples

2 x = 6 x - 12

7 x^{2} - 10 x - 8 = 0

x^{2} - 2 x - 6 = 0

join pi+pi/2 join

π + \frac{π}{2}

y^{2} - 8 y + 16 = 64

Frequently Asked Questions (FAQ)

What is x3+2x2-8<0 ?
The solution to x3+2x2-8<0 is x< 8/7