Question

Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3.

Answer 1

please give me medal

Answer 2

do you have answer choices?

Answer 3

I got -23

Answer 4

\(3^3=27\\-2*5^2 = -50\\-3*3^3=-81\\-3^4=81\)

Answer 5

\(27-(-50)=77\\77-(-81)=158\\158+81=239\)

Answer 6

so is that the answer because I did it on a calculator and got -23

Answer 7

yes that is what I got as the answer
if you want I can double check

Answer 8

that's good I was just wondering if you got what I got so I was double checking, but you can if you want.

Answer 9

ok so
\(3^3=27\\-2*5^2 = -50\\27-(-50)=77\)

Answer 10

\(-3*3^3=-81\\77-(-81)=158\)

Answer 11

\(-3^4=-81\\158+(-81)=77\)

Answer 12

Well I go a different answer...

Answer 13

yes it is 77

Answer 14

I added in the last step instead of subtracting the first time I solved it

Answer 15

here are the answer choices: a −185 b −77 c −23 d 85

Answer 16

gotta check again

Answer 17

I used my calculator and got -185

Answer 18

okay thanks man hey can you fan me I am going to give you a medal can you give me one too

Answer 19

sure

Answer 20

oh and by the way I fanned you