Question

factorise this

a) x^2 - 21x + 90

b) y^2 + 7y - 144

c) a^2 + 5a - 104

d) s^2 + 12s + 27
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Answer 1

Answer:

Hi mate

Here is your answer in this pic

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Step-by-step explanation:

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Answer 2

Answer:

Follow the image attached.