Answer:
= -32a+64b
Step-by-step explanation:
thats the answer
f^-1 (x) = - 6x-1 / 10 + 9x
either 81 or 81.8
f(x)=x² +3x-x/2
f(6)=(6)²+3(6)-6/2
= 36 + 18 -3
=51
