Answer:
1) 2x² - 3x + 7 = 0
a = 2 , b = -3 , c = 7
2) 6x² + 2x = 0
a = 6 , b = 2 , c = 0
3) x² - 6x - 10 = 0
a = 1 , b = -6 , c = -10
4) x² + 3x - 49 = 0
a = 1 , b = 3 , c = -49
5) x² + 8x + 9 = 0
a = 1 , b = 8 , c = 9
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Answer:
1) 2x² - 3x + 7 = 0
a = 2 , b = -3 , c = 7
2) 6x² + 2x = 0
a = 6 , b = 2 , c = 0
3) x² - 6x - 10 = 0
a = 1 , b = -6 , c = -10
4) x² + 3x - 49 = 0
a = 1 , b = 3 , c = -49
5) x² + 8x + 9 = 0
a = 1 , b = 8 , c = 9