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Earn +20 ptsQ: Is 9x2 plus 81x plus 9 trinomial?
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Is 9x2 - 18x plus 9 a trinomial square?
Factors are: 9(x - 1)(x - 1) or (3x - 3)2, so yes, it is.
What are two equivalent expressions for the opposite of the polynomial -x plus 81x-9?
72
What is the trinomial for 5x plus 4 9x plus 9?
(5x+4)(9x+9) FOIL First (5x*9x=45x**2) Outside (5x*9=45x) Inside (4*9x=36x) Last (4*9=36) 45x**2+45x+36x+36 45x**2+81x+36 9(5x**2+9x+4x)
4x - 10 plus 5x equals 71?
4x - 10 + 5x = 719x = 81x = 9
Is this trinomial a trinomial square x2-18x plus 81?
x2-18x+81 = (x-9)(x-9) when factored
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