16(2)-36+9
32-36+9
-4+9
No, it isn't a perfect square.
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The perfect square of 9 is 81.
(x + 3)(x + 3)
Yes (x+3(x+3)
Because 9*9 = 81 which is a square number or a perfect square.
Only if the value of c is 9 because:- 4x2+12x+9 = (2x+3)(2x+3)