Question

A
factorise the following
x2-5x-66

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Answer 1

${x}^{2} - 5x - 66 \\splitting \: themiddle \: term \\ = {x}^{2} - 11x + 6x - 66 = 0 \: \: \: \: \: \: \\ = x(x - 11) + 6(x - 11) = 0 \\ (x + 6)(x - 11) = 0 \\ x = - 6 \: \: \: \: x = 11 \\ \\ Hope \: you've \: understood \: ! \\ \\ follow \: me \: ❤$