Question

Write down the square of the
following expression 2a +5b
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Answer 1

Answer:

Here is your answer

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THANKS

Answer 2

Answer:

(2a+5b)^2

(a+b)^2= a^2+ 2ab+b^2

           =(2a)^2+2*2a*5b+(5b)^2

           =4a^2+20ab+25b^2

hope it helps u