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Popular >

5x^2(x^2-49)<= 0

Solution

5 x^{2} (x^{2} - 49) \leq 0

Solution

- 7 \leq x \leq 7

+1

Interval Notation

[- 7, 7]

Solution steps

5 x^{2} (x^{2} - 49) \leq 0

Rewrite in standard form

x^{4} - 49 x^{2} \leq 0

Factor

x^{4} - 49 x^{2} : x^{2} (x + 7) (x - 7)

x^{2} (x + 7) (x - 7) \leq 0

Identify the intervals

- 7 \leq x \leq 7

Popular Examples

x^{2} + 4 x + 4 = 6

6x^2-12x-90=152

6 x^{2} - 12 x - 90 = 152

(x+1}{1-x}+\frac{x-1)/x <2

\frac{x + 1}{1 - x} + \frac{x - 1}{x} < 2

2x+5/3 > 2/5 x-1

2 x + \frac{5}{3} > \frac{2}{5} x - 1

simplify sqrt(64)-sqrt(-289)simplify

64 - - 289

Frequently Asked Questions (FAQ)

What is 5x^2(x^2-49)<= 0 ?
The solution to 5x^2(x^2-49)<= 0 is -7<= x<= 7