Why did you place 5/5 instead of 15/3

April 8, 2026Mathematics

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Answer

In Step 1, when we divided the entire equation $3x^2 + 7x - 15 = 0$ by 3, the constant term became $\frac{-15}{3}$ .

Step 1: Divide by 3.

\frac{3x^2}{3} + \frac{7x}{3} - \frac{15}{3} = \frac{0}{3}

x^2 + \frac{7}{3}x - 5 = 0

The term $\frac{15}{3}$ simplifies to 5 because $15 \div 3 = 5$ . I did not use $\frac{5}{5}$ .

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