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$x^2+6x=-y^2-10y-18$
Learn how to solve problems step by step online. Solve the quadratic equation x^2+y^26x10y+18=0. Group the terms of the equation. Factor the polynomial x^2+6x by it's greatest common factor (GCF): x. Use the complete the square method to factor the trinomial of the form ax^2+bx+c. Take common factor a (-1) to all terms. Add and subtract \displaystyle\left(\frac{b}{2a}\right)^2.