3 years ago

PLEASE HELP!!

Mathematics

1 answer:

andrezito [222]3 years ago

4 0

Answer:-1/9,1/27,-1/81

Step-by-step explanation:

We are dividing by -3 each time.

3/-3=-1

-1/-3=1/3

1/3÷-3=-1/9

-1/9÷-3=1/27

1/27÷-3=-1/81

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$4y+20+4y^2=100\\4y^2+4y-80=0\\y^2+y-20=0\\(y+5)(y-4)=0\\y=4,-5$

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