What is the answer to x^2-7|x|-2=0 ?

The answer to x^2-7|x|-2=0 is x=(-7-sqrt(57))/2 \lor x=(7+sqrt(57))/2

Solve for x: x^2-7|x|-2=0

The solution is x=(-7-sqrt(57))/2 \lor x=(7+sqrt(57))/2

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x^{2} - 7 ∣ x ∣ - 2 = 0

x = \frac{- 7 - 57}{2} or x = \frac{7 + 57}{2}

Decimal Notation

x = - 7.27491 \dots, x = 7.27491 \dots

Solution steps

x^{2} - 7 ∣ x ∣ - 2 = 0

Find positive and negative intervals

x < 0, x \geq 0

Solve the inequality for each interval

x = \frac{- 7 - 57}{2} or x = \frac{7 + 57}{2}

∣ 2 r - 4 ∣ = ∣ 2 r + 10 ∣

x ∣ x + 3 ∣ + 2 ∣ x + 2 ∣ = 0

∣ 2 x + 5 ∣ = ∣ x - 4 ∣

∣ x + 3 ∣ = 2 x - 6

∣ 3 - x ∣ + 5 x = 2 x - ∣ 1 - 3 x ∣

What is the answer to x^2-7|x|-2=0 ?
The answer to x^2-7|x|-2=0 is x=(-7-sqrt(57))/2 \lor x=(7+sqrt(57))/2
Solve for x: x^2-7|x|-2=0
The solution is x=(-7-sqrt(57))/2 \lor x=(7+sqrt(57))/2