GRE Math Review 2 ALGEBRA - ETS Home

By either method, the solution of the system is x = 4 and y = negative 1, or the ordered pair x comma y = the ordered pair 4 comma negative 1. 2.4 Solving Quadratic Equations. A quadratic equation in the variable x is an equation that can be written in the form. a x squared + bx + c = 0, where a, b, and c are real numbers and a is not equal to 0. ................
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