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The trinomial $2x+1x^2+1$ is a perfect square trinomial, because it's discriminant is equal to zero
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$\Delta=b^2-4ac=2^2-4\left(-1\right)\left(-1\right) = 0$
Learn how to solve factor problems step by step online. Factor the expression 2x-x^2+-1. The trinomial 2x+1x^2+1 is a perfect square trinomial, because it's discriminant is equal to zero. Using the perfect square trinomial formula. Factoring the perfect square trinomial.