Question

factorise x2-16
above one plsss answer ​

Answer 1

Here is your answer...

${x}^{2} - 16 \\ {(x)}^{2} - {(4)}^{2} \\ using \: {a}^{2} - {b}^{2} identity \: we \: get... \\ {a}^{2} - {b}^{2} = (a - b)(a + b) \\ a = x \\ b = 4 \\ (x - 4)(x + 4)$

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