What is the answer to |n|+1=2 ?

The answer to |n|+1=2 is n=-1\lor n=1

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|n|+1=2

∣ n ∣ + 1 = 2

n = - 1 or n = 1

Solution steps

∣ n ∣ + 1 = 2

Move

1

to the right side

∣ n ∣ = 1

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

n = - 1 or n = 1

x^{\frac{1}{3}} \cdot x^{\frac{1}{3}}

x^{4} - 2 x^{3} - x^{2} + 2 x = 0

2 x + 5 > - 1

- 2 x = - 8

0. 4^{3}