(2x + 1)3 = -8
(2x + 1) = -23
=> 2x + 1 = -2
2x = -2 - 1
2x = -3
x = -3 : 2
x = \(\dfrac{-3}{2}\)
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(2x + 1)3 = -8
(2x + 1) = -23
=> 2x + 1 = -2
2x = -2 - 1
2x = -3
x = -3 : 2
x = \(\dfrac{-3}{2}\)