Question

please help me to find this answer​

Answer 1

Answer:

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Step-by-step explanation:

3.(1/y+4)(1/y-9)

(1/y)^2+(4+(-9))1/y+(4)*(-9)

1/y^2+(-5)*1/y-36

ANSWER=1/y^2-5/y-36

4.(m-4)(m+6)

m(m+6)-4(m+6)

m^2+6m-4m-24

ANSWER=m^2+2m-24