What is the answer to |x^2-121|=0 ?

The answer to |x^2-121|=0 is x=-11\lor x=11

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|x^2-121|=0

x^{2} - 121 = 0

x = - 11 or x = 11

Solution steps

x^{2} - 121 = 0

Apply absolute rule: If

∣ u ∣ = 0

then

u = 0

x^{2} - 121 = 0

x^{2} - 121 = 0 : x = 11, x = - 11

x = - 11 or x = 11

2 = ∣ q - 9 ∣

∣ 2 x + 4 ∣ - 3 = 7

∣ x - 6 ∣ = 2 x + 9

- ∣ x + 5 ∣ = - 3

∣ x - 9 ∣ + 1 = 8