Answer: y=5 Step-by-step explanation: (3y-9)(3y-9)=36 apply a foil method 9y^2-54y+81-36=0 9y^2-54y+45=0 quadratic formula y=5 / y=1 substitute y=5 on the equation 9(5)^2-54(5)+45=0 Log in to Reply

Answer:y=5

Step-by-step explanation:(3y-9)(3y-9)=36

apply a foil method

9y^2-54y+81-36=0

9y^2-54y+45=0

quadratic formula

y=5 / y=1

substitute y=5 on the equation

9(5)^2-54(5)+45=0

Answer:y = 1 and y = 5

Step-by-step explanation: