a^2b^2+8ab-9 factorise
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Answer:
(ab+9)(ab-1)
Step-by-step explanation:
(ab)^2+9ab-ab-9
ab(ab+9)-1(ab+9)
(ab+9)(ab-1)
Answered by
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Answer:
23+4566 what is the answer or 245 division by 5
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