Answer :
Answer:
f(-3) = 152
Step-by-step explanation:
The "exact process" is ...
put -3 wherever x is found and do the arithmetic.
__
f(-3) = 8(-3)^2 -4(-3)^3 -28
= 8(9) -4(-27) -28
= 72 +108 -28
f(-3) = 152
Answer:
f(-3) = 152
Step-by-step explanation:
The "exact process" is ...
put -3 wherever x is found and do the arithmetic.
__
f(-3) = 8(-3)^2 -4(-3)^3 -28
= 8(9) -4(-27) -28
= 72 +108 -28
f(-3) = 152