It can be factored as the SQUARE OF A BINOMIAL
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A trinomial is perfect square if it can be factored into the form
A trinomial is perfect square if it can be factored into the form (a+b)2 So a2 +2ab+b2 would work.
The given quadratic expression can not be factored as a perfect square.
Yes; the factored form would be (9c+4)(9c+4) or just (9c+4)2 Since the two factors are the same, the beginning trinomial 81c2+72c+16 is a perfect square trinomial
No.