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Mathematics
bivi1baseball
2016-04-09 12:10:27
Question 9 of 15 For which of the following equations are x = 3 x=3 and x = − 3 x=−3 both solutions?(The 2s next to the x are x to the power of 2 int the choice) A)x2−3x−9=0 B)x2+9=0 C)x2+6x−9=0 D)x2−9=0
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