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Complex Solutions of Quadratics
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ACCUPLACER
AAF.050 Complex Solutions of Quadratics
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Solve 20x
2
+ 26x + 25 = 0. Which answer gives both solutions in a + bi form?
A
x = 13/20 + (sqrt(331)/20)i and x = 13/20 - (sqrt(331)/20)i
B
x = 7/20 + (sqrt(331)/20)i and x = 7/20 - (sqrt(331)/20)i
C
x = -33/20 + (sqrt(331)/20)i and x = -33/20 - (sqrt(331)/20)i
D
x = -13/20 + (sqrt(331)/20)i and x = -13/20 - (sqrt(331)/20)i
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