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Popular >

x^4-9x^2>0

Solution

x^{4} - 9 x^{2} > 0

Solution

x < - 3 or x > 3

+1

Interval Notation

(- \infty, - 3) \cup (3, \infty)

Solution steps

x^{4} - 9 x^{2} > 0

Factor

x^{4} - 9 x^{2} : x^{2} (x + 3) (x - 3)

x^{2} (x + 3) (x - 3) > 0

Identify the intervals

x < - 3 or x > 3

Popular Examples

factor 48mn+84m^2-56n-98m factor

48 mn + 84 m^{2} - 56 n - 98 m

factor 3x^5-2x^3-8x factor

3 x^{5} - 2 x^{3} - 8 x

3 - (x + 9) \geq 4 - 3 x

factor 3y^2+17y-28 factor

3 y^{2} + 17 y - 28

f = \frac{8}{2 ^{- 1}}

Frequently Asked Questions (FAQ)

What is x^4-9x^2>0 ?
The solution to x^4-9x^2>0 is x<-3\lor x>3