wich of the following is a perfect square trinomial:
– x ^ 2 - 6x + 9
– x ^ 2 - x + 1
– x ^ 2 - 6x - 9
– x ^ 2 - 4
– x ^ 2 - 6x + 9
– x ^ 2 - x + 1
– x ^ 2 - 6x - 9
– x ^ 2 - 4
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Answer:
x ^ 2 - 6x + 9
Step-by-step explanation:
x^2 - 6x + 9
x^2 - 3x - 3x + 9
x(x - 3) - 3(x - 3)
(x - 3) (x - 3)
(x - 3)^2