Answers

2016-06-28T17:03:38+08:00
3h^2 -147=0 Additive inverse 3h^2 = 147 Divide into 3 so that we can square both sides 3h^2/ 3 = 147/3 In 3h^2 /3 the 3 will cancel and 147/3= 49 H^2 = 49 Square root the both sides H= 7
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