1.

`4a^2+b^2+4ab+8a+4b+4= ? `A. `(2a+b+2)^2`B. `(2a-b+2)^2`C. `(a+2b+2)^2`D. None of these

Answer» Correct Answer - A
Given expression `=(2a)^2+b^2+2^2+2xx[(2a)xx b+(bxx2)+(2axx 2)]=(2a+b+2)^2`.


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