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  • 29-06-2020
  • Mathematics
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If y^2=18y-81 what is the value of y

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Аноним Аноним
  • 29-06-2020

Answer:

y=9

Step-by-step explanation:

y^2=18y-81

y^2-18y+81=0

y^2-9y-9y+81=0

y(y-9)-9(y-9)=0

(y-9)(y-9)=0

(y-9)^2=0

So the value of y is 9

I hope it will help you:)

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