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Solve by graphing: \( \frac{3}{2 x-1}=\frac{x+2}{x} \) \( \left\{\begin{array}{l}\{-1,0,1\} \\ \{1\} \\ \{-2,3\} \\ \{-1,1\}\end{array}\right. \)

Ask by Savage Ramos. in the United States
Jan 25,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

The solutions are \( x = -1 \) and \( x = 1 \).

Solution

Solve the equation \( \frac{3}{2x-1}=\frac{x+2}{x} \). Solve the equation by following steps: - step0: Solve for \(x\): \(\frac{3}{2x-1}=\frac{x+2}{x}\) - step1: Find the domain: \(\frac{3}{2x-1}=\frac{x+2}{x},x \in \left(-\infty,0\right)\cup \left(0,\frac{1}{2}\right)\cup \left(\frac{1}{2},+\infty\right)\) - step2: Cross multiply: \(3x=\left(2x-1\right)\left(x+2\right)\) - step3: Expand the expression: \(3x=2x^{2}+3x-2\) - step4: Cancel equal terms: \(0=2x^{2}-2\) - step5: Swap the sides: \(2x^{2}-2=0\) - step6: Move the constant to the right side: \(2x^{2}=2\) - step7: Divide both sides: \(\frac{2x^{2}}{2}=\frac{2}{2}\) - step8: Divide the numbers: \(x^{2}=1\) - step9: Simplify the expression: \(x=\pm \sqrt{1}\) - step10: Simplify: \(x=\pm 1\) - step11: Separate into possible cases: \(\begin{align}&x=1\\&x=-1\end{align}\) - step12: Check if the solution is in the defined range: \(\begin{align}&x=1\\&x=-1\end{align},x \in \left(-\infty,0\right)\cup \left(0,\frac{1}{2}\right)\cup \left(\frac{1}{2},+\infty\right)\) - step13: Find the intersection: \(\begin{align}&x=1\\&x=-1\end{align}\) - step14: Rewrite: \(x_{1}=-1,x_{2}=1\) The solutions to the equation \( \frac{3}{2x-1}=\frac{x+2}{x} \) are \( x = -1 \) and \( x = 1 \). Therefore, the solutions are \( \{-1,1\} \).

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Extra Insights

To solve the equation \( \frac{3}{2x-1} = \frac{x+2}{x} \) by graphing, you can start by rewriting it as two functions: 1. \( y_1 = \frac{3}{2x-1} \) 2. \( y_2 = \frac{x+2}{x} \) Graph both functions on the same coordinate plane, and look for their intersection points. These intersection points will be the solutions of the equation. After graphing, you will find that the possible solutions from the provided sets can be identified. The intersections will reveal that \( x = -1 \) and \( x = 1 \) are indeed the solutions, leading you to choose the set that includes \{-1, 1\}. For a visual representation, make sure to label your axes and note any asymptotes since the functions behavior near zero and undefined regions will play a big role! Happy graphing!

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