Question

1 Factorise
by splitting the middle term:

x^2 -7x +12
step by step​

Answer 1

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${x}^{2} - 7x + 12 \\ = {x}^{2} - 4x - 3x + 12 \\ = x(x - 4) - 3(x - 4) \\ = (x - 4)(x - 3)$

Answer 2

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$$\begin{lgathered}{x}^{2} - 7x + 12 \\ = {x}^{2} - 4x - 3x + 12 \\ = x(x - 4) - 3(x - 4) \\ = (x - 4)(x - 3)\end{lgathered}$$