11
66=11×6
121=11×11
132=11×12
Answer:
f=1/x^2-81
Step-by-step explanation:
Step 1: Multiply both sides by x^2-81.
fx3−81fx=x
Step 2: Factor out variable f.
f(x3−81x)=x
Step 3: Divide both sides by x^3-81x.
f(x3−81x)
x3−81x
=x
x3−81x
f=
1
x2−81
Yes they are equivalent because when you multiply by 10, you move the decimal place one spot to the right.
1 and 8 should be the answer I believe.
