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Popular >

5x^2+8x<4

Solution

5 x^{2} + 8 x < 4

Solution

- 2 < x < \frac{2}{5}

+2

Interval Notation

(- 2, \frac{2}{5})

Decimal Notation

- 2 < x < 0.4

Solution steps

5 x^{2} + 8 x < 4

Rewrite in standard form

5 x^{2} + 8 x - 4 < 0

Factor

5 x^{2} + 8 x - 4 : (5 x - 2) (x + 2)

(5 x - 2) (x + 2) < 0

Identify the intervals

- 2 < x < \frac{2}{5}

Popular Examples

simplify (x^3)^4 simplify

(x^{3})^{4}

simplify (((-2x)^2)/(3xy^2))^3 simplify

(\frac{( - 2 x ) ^{2}}{3 x y ^{2}})^{3}

factor x^3-2x^2+1 factor

x^{3} - 2 x^{2} + 1

-3(x-1)+8(x-3)=6x+7-5x

- 3 (x - 1) + 8 (x - 3) = 6 x + 7 - 5 x

6 \leq x \leq 7

Frequently Asked Questions (FAQ)

What is 5x^2+8x<4 ?
The solution to 5x^2+8x<4 is -2<x< 2/5