Question

Factorise x^2-13x+36

Answer 1

`{x}^(2) - 13x + 36 \\ \implies \: {x}^(2) - 9x - 4x + 36 \\ \implies \: x(x - 9) - 4(x - 9) \\ \implies \: (x - 4)(x - 9)`

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