Question

factorise y^2 +y-72

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Answer 1

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Answer 2

Answer:

(y+9)(y-8)

Step-by-step explanation:

y^2+y-72

=y^2+(9-8)y-72

=y^2+9y-8y-72

=y(y+9)-8(y+9)

=(y+9)(y-8)