Question

simplify the following expressions
1 . ( 5+route7)(2+route5)
2 (route3+route7)square
3 (5+route5)(5-route5)
4 ( route11-route7)(route11+route7
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Answer 1

1. 10+5route5+2route7+route35
2. 10+2route12
3. 20
4. 4