Answers

2014-09-19T09:56:50+08:00
2(5-a)² +7a
2(5-2)² +7(2)
2(3)² +14
2(9)+14
18+14
32⇒answer
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2014-09-19T10:03:58+08:00
2(5-2)² +7(2) =2(3)² +14 =2(9) +14 =18+14 =32
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