Question

(x+1)^3=-343

tìm x

Answer 1

(x + 1)³ = -343 = (-7)³

x + 1 = -7

x = -7 - 1

x=  -8 

Vậy x = -8

Answer 2

( x + 1 )^3=-343

x + 1 = -7

x = -7 - 1 = -8

Answer 3

(x+1)^3=(-7)^3

<=>x+1=-7

<=>x=-7 - 1

<=>x=-8

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