Question

solve the following by reducing them to a quadratic equation (7y-1/y)²-3(7y-1/y)=18​

Answer 1

Answer:

y= 1

Step-by-step explanation:

For(7y-1/y) we write a

so

a^2 - 3a -18 = 0

so a =6

and

7y-1/y=6

y=1