Answer:
34
Step-by-step explanation:
You substitute 3 in for x, so your equation is now 2(3)^3 - 7(3) + 1.
You solve using P.E.M.D.A.S.
Start with 3^3 (3*3*3) = 27 Now the equation is 2(27) - 7(3) + 1.
-7(3)= -21 and 2(27)= 54.
Now it's 54 - 21 + 1.
54 - 21 is 33, add 1.
34.
Hope this helps!
