Find the solutions of each of the following quadratic equations using the quadratic formula. Answer the questions that follow.
1. x² + 10x + 9 = 0
2. m² - 4m = -12
3. 2t² + 9 = -7t
4. 9b²-72 = 0
5. 2w²+ 4w = 3
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We have to find the solution by using the quadratic formula, x = -b ± √(b² - 4ac) / 2a.
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