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Popular >

x^4-5x^2+4<= 0

Solution

x^{4} - 5 x^{2} + 4 \leq 0

Solution

- 2 \leq x \leq - 1 or 1 \leq x \leq 2

+1

Interval Notation

[- 2, - 1] \cup [1, 2]

Solution steps

x^{4} - 5 x^{2} + 4 \leq 0

Factor

x^{4} - 5 x^{2} + 4 : (x + 1) (x - 1) (x + 2) (x - 2)

(x + 1) (x - 1) (x + 2) (x - 2) \leq 0

Identify the intervals

- 2 \leq x \leq - 1 or 1 \leq x \leq 2

Popular Examples

∣ 3 x - 5 ∣ > x^{2} - 3 x

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m^{2} + 10 m + 9

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2 x + x + x + 2 y \times 3 y \times y

simplify sqrt(5)*sqrt(12)simplify

5 \cdot 12

4 x - 2 \leq - 22

Frequently Asked Questions (FAQ)

What is x^4-5x^2+4<= 0 ?
The solution to x^4-5x^2+4<= 0 is -2<= x<=-1\lor 1<= x<= 2