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Rational-equations.com includes simple info on matrix quadratic form calculator, dividing fractions and functions and other algebra subject areas. y = -x^4 + 5 Graphically, since a quadratic equation represents a parabola. y = x^2 - 4x +5 A truly piece of algebra software is Algebrator. The solve for variable calculator identifies the variables then add or subtract variables on one … In the case you want help with algebra and in particular with algebra tiles solve equations or factors come pay a visit to us at Algebra-calculator.com. The solution of a quadratic equation is the value of x when you set the equation equal to zero. The roots will be shown on screen. The process of completing the square makes use of the algebraic identity + + = (+), which represents a well-defined algorithm that can be used to solve any quadratic equation. 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