factorise 1y²—1y—12
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1y²-1y-12
1y²-4y+3y-12
y(y-4) +3(y-4)
(y-4) (y+3) is the correct answer
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Answered by
21
Answer:
1y^2-1y-12
=y^2-y-12
=y^2-4y+3y-12
=y(y-4)+3(y-4)
=(y+3)(y-4)
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