1.

Expand (2a+5b)^2 plz plz tell​

Answer»

Step-by-step EXPLANATION:

=(2A+5B)²

=(2a)²+2*2a*5b+(5b)²[USING (a+b)²=a²+2ab+b²]

=4a²+20ab+25b²

hope it HELPS.......



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