Question

$(x - 7)(x - 9) = 195$
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Answer 1

$(x - 7)(x - 9) = 195$

${x}^{2} - 9x - 7x + 72 = 195$

${x}^{2} - 16x = 195 - 72$

${x}^{2} - 16 x= 123$

in general form:

${x}^{2} - 16x - 123 = 0$

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