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Popular >

|x^2-9|<= 0

Solution

x^{2} - 9 \leq 0

Solution

x = - 3 or x = 3

+1

Interval Notation

x = - 3 \cup x = 3

Solution steps

x^{2} - 9 \leq 0

Apply absolute rule: If

∣ u ∣ \leq 0

then

u = 0

x^{2} - 9 = 0

x^{2} - 9 = 0 : x = 3, x = - 3

x = - 3 or x = 3

Popular Examples

3 x^{2} - 6 = 7 x

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simplify 343^{4/3}simplify

34 3^{\frac{4}{3}}

Frequently Asked Questions (FAQ)

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