Answers

2015-08-23T18:24:47+08:00
(x+5)(x-5)

I hope this can help:)

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2015-08-23T19:23:14+08:00
Sum and difference of the same term such as (y+8)(y-8) , (2y + 6) (2y - 6) , (m+3)(m-3)..
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