1.

Expand (3a-2b)^2Evaluate (16/81) ^1/4"

Answer»

9a^2-12ab+4b^2

(2^4/3^4)^1/4=2/3

4th line is 3a(3a-2b)+(3a-2b)

4th line is 3a(3a-2b)+(3a-2b)



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