What is the answer to |2x|=5 ?

The answer to |2x|=5 is x=-5/2 \lor x= 5/2

The solution is x=-5/2 \lor x= 5/2

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|2x|=5

∣ 2 x ∣ = 5

x = - \frac{5}{2} or x = \frac{5}{2}

Solution steps

∣ 2 x ∣ = 5

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

2 x = - 5 or 2 x = 5

2 x = - 5 or 2 x = 5

x = - \frac{5}{2} or x = \frac{5}{2}

x^{3} - 5 x^{2} - 5 x + 25

(1 + i)^{10}

0 y - 2 = 19 - 4 y + 1 y

16 q^{2} + 56 q + 49

9^{\frac{3}{4}} \cdot 3^{- \frac{1}{2}}