1.

Find the roots of the following x square-23 x + 132=0

Answer» {x}^{2} - 23x + 132 = 0 \\ {x}^{2} - 12x - 11x + 132 = 0 \\ x(x - 12) - 11(x - 12) = 0\\ (x - 11)(x - 12) = 0 \\ x - 11 = 0 \\ x = 11 \\ and  \\ x - 12 = 0 \\ x = 12


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