Solve using the quadratic formula.
\[
7 q^{2}-5 q-4=0
\]
Answer
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Answer
\(q = \frac{5 \pm \sqrt{89}}{14}\)
Steps
Step 1 ：\(q = \frac{-b \pm \sqrt{b^{2} - 4ac}}{2a}\)
Step 2 ：\(q = \frac{5 \pm \sqrt{(-5)^{2} - 4 \cdot 7 \cdot (-4)}}{2 \cdot 7}\)
Step 3 ：\(q = \frac{5 \pm \sqrt{89}}{14}\)
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