Question

Giá trị của thỏa mãn là

Answer 1

x = -3

Answer 2

\(\left(2y+1\right)^3=-125\)

\(\Leftrightarrow\left(2y+1\right)^3=\left(-5\right)^3\)

\(\Leftrightarrow2y+1=-5\)

\(\Leftrightarrow2y=-4\Leftrightarrow y=-2\)

Answer 3

\(\left(2y+1\right)^3=-125\)

\(\Leftrightarrow\left(2y+1\right)^3=\left(-5\right)^3\)

\(\Leftrightarrow2y+1=-5\)

\(\Leftrightarrow2y=-6\Leftrightarrow y=-3\)

Answer 4

(2y+1)^3=-125

(2y+1)^3=-5^3

2y+1 =-5

2y =-5-1

2y =-6

y =-6:2

y =-3

Answer 5

x= -3