Question

tính giúp mình câu này với

Answer 1

\(\left(2x-3\right)^3=\left(-4\right)^3\)

\(\rightarrow2x-3=-4\\ 2x=-4+3=-1\\ \rightarrow x=-\dfrac{1}{2}\)

Answer 2

\(e,\Rightarrow\left(2x-3\right)^3=\left(-4\right)^3\\ \Rightarrow2x-3=-4\\ \Rightarrow2x=-1\\ \Rightarrow x=-\dfrac{1}{2}\)

Answer 3

\(e,\left(2x-3\right)^3=-64\)

\(\Rightarrow2x-3=-4\)

\(\Rightarrow2x=-1\)

\(\Rightarrow x=-\dfrac{1}{2}\)

Answer 4

\(\left(2x-3\right)^3=-4^3\)

\(2x-3=-4\)

\(2x=-1\Leftrightarrow=-\dfrac{1}{2}\)