Question

factorise
a²-24a+128​

Answer 1

Step-by-step explanation:

${a}^{2} - 24a + 128 \\ = {a }^{2} - 16a - 8a + 128 \\ = a(a - 16) - 8(a - 16) \\ (a - 16)(a - 8) = 0 \\ a - 16 = 0 \\ a = 16. \\ a - 8 = 0 \\ a = 8.$

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Answer 2

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