Final Answer
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Group the terms of the equation
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$y^2+2y=-x^2-10x-25$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2+y^210x2y+25=0. Group the terms of the equation. The trinomial -x^2-10x-25 is a perfect square trinomial, because it's discriminant is equal to zero. Using the perfect square trinomial formula. Factoring the perfect square trinomial.