What is the answer to |x-4|=4 ?

The answer to |x-4|=4 is x=0\lor x=8

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|x-4|=4

∣ x - 4 ∣ = 4

x = 0 or x = 8

Solution steps

∣ x - 4 ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

x - 4 = - 4 or x - 4 = 4

x - 4 = - 4 or x - 4 = 4

x = 0 or x = 8

y^{2} = 4 - \frac{( \frac{80}{17} ) ^{2}}{4}

(5 + i)^{2}

- \frac{10}{3} - 1

x^{2} + 5 x - 21 = 0

\frac{x ^{2} y ^{- 5}}{x ^{- 8} y ^{- 8}}