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OpenStudy (anonymous):
Is 9x2 + 54x + 81 a perfect square trinomial? Justify your answer. You may use "^" to indicate an exponent. For example, x2 can be typed in as x^2.
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OpenStudy (raden):
this is can be factored, 9x^2 + 54x + 81 = (3x + 9)(3x + 9) = (3x + 9)^2 in other words, it is a perfect square
OpenStudy (anonymous):
yeah @raden is correct
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