1a. You can't do much for it, answer could be x(x+8)
1b. (x+5)(x+3)
1c. (x + 3y)(x - 3y)
1d. (5x - 4) (x + 2)
2. It's very likely you need a protractor and a ruler for this. If not, tell me and I'll try to find it.
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