Question
\[ (2 x-3)^{3 / 2}-3=122 \] The solution set is
Ask by Alexander Munoz. in the United States
Feb 25,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The solution is \( x=14 \).
Solution
Solve the equation \( (2x-3)^{3/2}-3=122 \).
Solve the equation by following steps:
- step0: Solve for \(x\):
\(\left(2x-3\right)^{\frac{3}{2}}-3=122\)
- step1: Find the domain:
\(\left(2x-3\right)^{\frac{3}{2}}-3=122,x\geq \frac{3}{2}\)
- step2: Move the constant to the right side:
\(\left(2x-3\right)^{\frac{3}{2}}=122+3\)
- step3: Add the numbers:
\(\left(2x-3\right)^{\frac{3}{2}}=125\)
- step4: Raise both sides to the \(\frac{2}{3}\)-th power\(:\)
\(\left(\left(2x-3\right)^{\frac{3}{2}}\right)^{\frac{2}{3}}=125^{\frac{2}{3}}\)
- step5: Evaluate the power:
\(2x-3=25\)
- step6: Move the constant to the right side:
\(2x=25+3\)
- step7: Add the numbers:
\(2x=28\)
- step8: Divide both sides:
\(\frac{2x}{2}=\frac{28}{2}\)
- step9: Divide the numbers:
\(x=14\)
- step10: Check if the solution is in the defined range:
\(x=14,x\geq \frac{3}{2}\)
- step11: Find the intersection:
\(x=14\)
- step12: Check the solution:
\(x=14\)
The solution set for the equation \((2x-3)^{3/2}-3=122\) is \(x=14\).
Answered by UpStudy AI and reviewed by a Professional Tutor
Like
error msg


Extra Insights
To solve the equation \((2x - 3)^{3/2} - 3 = 122\), we first isolate the radical term. 1. Add 3 to both sides: \[ (2x - 3)^{3/2} = 125 \] 2. Next, we raise both sides to the power of \(2/3\) to eliminate the exponent: \[ 2x - 3 = 125^{2/3} \] 3. Calculating \(125^{2/3}\), we first find \(125^{1/3} = 5\) (since \(5^3 = 125\)), and then square it: \[ 5^2 = 25 \] Thus: \[ 2x - 3 = 25 \] 4. Now, add 3 to both sides: \[ 2x = 28 \] 5. Finally, divide by 2: \[ x = 14 \] So, the solution set is \(\{ 14 \}\).