GRE Math Review 2 ALGEBRA - ETS Home

Other quadratic equations have no real solutions; for example, x squared, + x, + 5 = 0. In this case, the expression under the square root symbol is negative, so the entire expression is not a real number. Some quadratic equations can be solved more quickly by factoring. For example, the quadratic equation 2, x squared, minus x, minus 6 = 0 in ... ................
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