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Find the discriminant of each quadratic equation then state the number and type of solutions.
1) - 7n² = - 3n
2) 5v²+ 5 = 10v
Solve each equation by factoring.
3) 1² = 6 + 5x
4) p² - 28 = 3p
5) k² - 10k = - 16
6) n² - 12n = - 32
7) m²- 7m = 6
8) b²= 9
Solve each equation by taking square roots.
9) 9x²-10=134
10) 81p²-1=0
11) 5n²+9=29
12) 5p²-6=229
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Answer:
1 7n² - 4 = 3n
2 5v² + 5 = 10v
3 6 - 5x = 1 ²
4 k² - 10k = 16