Evaluate (x+4)2

We have to evaluate (x+4)^2

Solution

(x+4)2 can be simplified using the identity (a+b)2

(a+b)2= a2 + 2ab +b2

Here a=x and b=4

(x+4)2= x2 + 2 (x) (4) + 42

(x+4)2= x2 + 8 x + 16

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