What is the answer to |x^2-2x|=15 ?

The answer to |x^2-2x|=15 is x=-3\lor x=5

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|x^2-2x|=15

x^{2} - 2 x = 15

x = - 3 or x = 5

Solution steps

x^{2} - 2 x = 15

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

x^{2} - 2 x = - 15 or x^{2} - 2 x = 15

x^{2} - 2 x = - 15 or x^{2} - 2 x = 15

No Solution or (x = - 3 or x = 5)

x = - 3 or x = 5

22 x^{2} - 25 x y + 7 y^{2}

24 π = r (\frac{π}{4})

56 k^{4} - 24 k^{3} + 40 k^{2}

14 + 8 m = 14 - 3 m - 5 m

(x + 2)^{2} + 7 (x + 2) + 12 = 0