Answers

2014-06-12T11:28:38+08:00
Look at the photo ...  may solution na po siya
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2014-06-12T11:32:55+08:00
Solve for a in a²-4
Solution
To get the value of a, factor the product
(a-2)(a+2)
a=±2
OR
a²-4
Get the √a² and √4
a=±2

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