Find the indicated products below...

1) (a+3)(a+3)
2) (b+4a)²
3) 2a(8a+3a)
4) (b-2)(b-4)
5)-2a(b+3-2a)
6) (5b²+7a²)(-5b²+7a²)
7) (a-6b)(a+6b)
8) (a+9)(a-9)
9) (3+a+b)²
10) (3b-4a)(3b-4a)
11) (-4a+b)(4a+b)
12) (2-a)(4-a)
13) (4a³-5b²)(4a³+5b²)
14) (2a+6b)(2a-6b)

1

Answers

2016-06-21T21:55:00+08:00
1. a²+ 9
2. b²+ 6ab + 16a²
3. 16a²+ 6a²
4. b²+8 (why +? negative plus negative equals, positive)
5. -2ab- 6a+ 4a²

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