Subjects/Calculus II/Completing the square/Formula7.3. Completing the squareFormulaIn 7.3. Completing the squareFormulaCopy LaTeX2ax−x2=a2−(x−a)2.VariablesxVariable independiente (variable de integración)aConstant real (a menudo a>0)Related formulasRelatedBefore using trigonometric substitution, a quadratic must be written in a standard form:x2+Bx+C=(x+2B)2+C−4B2.Open formulaOpen in section