find the value of ( x^2-1) if f(x)= 3x-9
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1
Answer:
8
Step-by-step explanation:
x^2-1
f(x)=3x-9=0
=3x=9
= x=9/3
=x=3
from equation 1st we pit the value of x
3^3-1
9-1
8
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