Answers

2015-10-24T18:50:36+08:00
Its easy but its has many solutions or in short "other ways"
First if your equation is (5-1)(5+1) the answer is always 25-1 because its has no middle.
If your are still confused, you may always use the formula and its very helpful
1. a+b+c
2. (a + b)(a square + ab+ b square)
3. You may use the happy face
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