The formula is x = (-b ± sqrt(b^2 - 4ac)) / 2aĪlgebraic Equations Cheat Sheet Linear EquationsĪ linear equation is an equation of the form Ax + By = C, where A, B, and C are constants, and x and y are variables. Quadratic Formula: The quadratic formula can be used to find the roots of a quadratic equation.FOIL Method: (a + b)(c + d) = ac + ad + bc + bd.Factoring: To factor a polynomial, find the common factor of all the terms and divide each term by that factor.Distributive Property: a(b+c) = ab + ac.Division: To divide two or more terms, just divide the coefficients and subtract the exponents of the like variables.Multiplication: To multiply two or more terms, just multiply the coefficients and add the exponents of the like variables.Subtraction: To subtract two or more terms, just subtract the coefficients of the like terms.Addition: To add two or more terms, just combine the coefficients of the like terms. Algebraic Expressions Basic Algebraic Expressions
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