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Popular >

x^2-x-20<= 0

Solution

x^{2} - x - 20 \leq 0

Solution

- 4 \leq x \leq 5

+1

Interval Notation

[- 4, 5]

Solution steps

x^{2} - x - 20 \leq 0

Factor

x^{2} - x - 20 : (x + 4) (x - 5)

(x + 4) (x - 5) \leq 0

Identify the intervals

- 4 \leq x \leq 5

Popular Examples

5 x - 10 = 3 x^{2}

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(8 \cdot 320)^{\frac{1}{3}}

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\frac{- 5}{4 ^{2}}

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5 x^{2} + 46 x - 40

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\frac{2}{3} 4^{\frac{3}{2}}

Frequently Asked Questions (FAQ)

What is x^2-x-20<= 0 ?
The solution to x^2-x-20<= 0 is -4<= x<= 5