Answer:
153
Step-by-step explanation:
K(9)=2*9^2-3[tex]\sqrt{x} 9[/tex]
K(9)=2*81-3*3
K(9)=162-9
K(9)=153
Since the given question is
K(x)=2x^2-3√x
K(9) means we will have to substitute the value into the given equation
So let's solve
K(9)=2(9)^2-3√9
=2(81)-3(3)
=162-9
=153
So the final answer is 153
