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Select the correct answer. Find the quotient. \( \frac{2 x-3}{x} \div \frac{7}{a^{2}} \) A. \( \frac{7}{2(2 x-3)} \) B. \( \frac{7 x}{2 x-3} \) C. \( \frac{2 x-3}{7 x} \) D. \( \frac{x(2 x-3)}{7} \) Next

Ask by Rose Kirk. in the United States
Feb 03,2025

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Answer

The correct answer is D: \( \frac{x(2x-3)}{7} \).

Solution

To find the quotient of the expression: \[ \frac{2x - 3}{x} \div \frac{7}{a^{2}} \] **Step 1: Rewrite the Division as Multiplication** Dividing by a fraction is the same as multiplying by its reciprocal. Therefore: \[ \frac{2x - 3}{x} \div \frac{7}{a^{2}} = \frac{2x - 3}{x} \times \frac{a^{2}}{7} \] **Step 2: Simplify the Expression** Multiply the numerators together and the denominators together: \[ \frac{(2x - 3) \cdot a^{2}}{x \cdot 7} = \frac{a^{2}(2x - 3)}{7x} \] However, none of the provided options include \(a^{2}\), which suggests there might be a typographical error in the original problem. If we assume that \(a^{2}\) was intended to be \(x^{2}\), the expression becomes: \[ \frac{2x - 3}{x} \div \frac{7}{x^{2}} = \frac{2x - 3}{x} \times \frac{x^{2}}{7} = \frac{x(2x - 3)}{7} \] This matches one of the provided options. **Correct Answer:** **D.** \(\frac{x(2x-3)}{7}\)

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To solve the expression \( \frac{2 x-3}{x} \div \frac{7}{a^{2}} \), we first rewrite the division as multiplication by the reciprocal: \( \frac{2 x-3}{x} \times \frac{a^2}{7} \). Now we can simplify this expression: 1. Combine the products: \( \frac{(2 x-3) \cdot a^2}{7 x} \). 2. This cannot be simplified further without additional information about \( a \) or the value of \( x \). None of the answer choices directly match this expanded form, so let's double check any values or assumptions. The correct answer is **not listed** among the options given if we strictly adhere to the mathematical simplification process! Now for a little extra nugget of wisdom and fun facts! Did you know that long division isn't just for numbers? This technique can also be applied to polynomials! Understanding how to manipulate expressions can unlock more advanced math concepts down the road, making it a handy skill for tackling algebraic challenges head-on! Speaking of tackling challenges, one common pitfall in algebra is forgetting to apply the "multiply by the reciprocal" rule when dividing fractions. Always double-check that step! It’s the kind of mistake that can lead to some seriously tangled equations, or worse, completely incorrect final answers!

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