Question

ps 5.2
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1) (K+4)
2) (7x+8y)
3) (7+m) 3
4) (52) 3
s) (101) 3
6)[x+1/x]3
7) [2m+1/5]3
8) 5x/y+y/5x]3​

Answer 1

Answer:

7) (2m+1/5)3=(2m)3+(1/5)3+3(2m)2/5+3(2m)(1/5)2