Answers

2016-07-10T22:32:03+08:00
X² + 5x - 14 = 0 a = 1 b = 5 c = -14 x = -b±√b² + 4ac/2a = -5±√(5)² + 4(1)(-14)/2(1) = -5±√25 + 56/2 = -5±√81/2 = -5±9/2 x = -5 + 9/2 ; x = -5 - 9/2 = 4/2 = -14/2 xSUB1 = 2 xSUB2 = -7
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