For example, the simultaneous equations \(3a + 2b = 17\) and \(4a - b = 30\) have no common coefficient as the coefficients of \(a\) are 3 and 4, and the coefficients of \(b\) are 2 and -1. Remember ...
Quadratic expressions can be written in the form \(ax^2 + bx + c\), where \(a\), \(b\) and \(c\) are numbers. \(a\) is called the coefficient of \(x^2\) and \(b\) is ...
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