What is the answer to |-9(x^2-1)|=9 ?

The answer to |-9(x^2-1)|=9 is x=-sqrt(2)\lor x=0\lor x=sqrt(2)

Solve for x: |-9(x^2-1)|=9

The solution is x=-sqrt(2)\lor x=0\lor x=sqrt(2)

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- 9 (x^{2} - 1) = 9

x = - 2 or x = 0 or x = 2

Decimal Notation

x = - 1.41421 \dots, x = 0, x = 1.41421 \dots

Solution steps

- 9 (x^{2} - 1) = 9

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 9 (x^{2} - 1) = - 9 or - 9 (x^{2} - 1) = 9

- 9 (x^{2} - 1) = - 9 or - 9 (x^{2} - 1) = 9

(x = - 2 or x = 2) or x = 0

x = - 2 or x = 0 or x = 2

∣ x - 7.5 ∣ = 3.5

6 ∣ x + 5 ∣ + 6 = 96

6 ∣ 1 - x ∣ + 7 = 31

∣ a + 7 ∣ = 5

∣ x + 1 ∣ = 3 x

What is the answer to |-9(x^2-1)|=9 ?
The answer to |-9(x^2-1)|=9 is x=-sqrt(2)\lor x=0\lor x=sqrt(2)
Solve for x: |-9(x^2-1)|=9
The solution is x=-sqrt(2)\lor x=0\lor x=sqrt(2)