1.

X2+4x+4​

Answer»

ANSWER:

{x}^{2}  + 4x + 4 \\   = {x}^{2}  + 2 \times 2 \times x +  {2}^{2}  \\  =  {(x + 2)}^{2}  \\  = (x + 2)(x + 2)



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