Which expression is NOT a perfect square trinomial? ? x^2 - 4x + 4 ? x^2 + 10x + 25 ? x^2 - 8x + 16 ? x^2 - 6x - 9
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Step 1: In a perfect square trinomial, the first and last terms must be perfect squares, and the middle term must be twice the product of the square roots of the first and last terms. Show more…
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