anonymous
  • anonymous
Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
please give me medal
Mehek14
  • Mehek14
do you have answer choices?
anonymous
  • anonymous
I got -23

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More answers

Mehek14
  • Mehek14
\(3^3=27\\-2*5^2 = -50\\-3*3^3=-81\\-3^4=81\)
Mehek14
  • Mehek14
\(27-(-50)=77\\77-(-81)=158\\158+81=239\)
anonymous
  • anonymous
so is that the answer because I did it on a calculator and got -23
Mehek14
  • Mehek14
yes that is what I got as the answer if you want I can double check
anonymous
  • anonymous
that's good I was just wondering if you got what I got so I was double checking, but you can if you want.
Mehek14
  • Mehek14
ok so \(3^3=27\\-2*5^2 = -50\\27-(-50)=77\)
Mehek14
  • Mehek14
\(-3*3^3=-81\\77-(-81)=158\)
Mehek14
  • Mehek14
\(-3^4=-81\\158+(-81)=77\)
Mehek14
  • Mehek14
Well I go a different answer...
Mehek14
  • Mehek14
yes it is 77
Mehek14
  • Mehek14
I added in the last step instead of subtracting the first time I solved it
anonymous
  • anonymous
here are the answer choices: a −185 b −77 c −23 d 85
Mehek14
  • Mehek14
gotta check again
Mehek14
  • Mehek14
I used my calculator and got -185
anonymous
  • anonymous
okay thanks man hey can you fan me I am going to give you a medal can you give me one too
Mehek14
  • Mehek14
sure
anonymous
  • anonymous
oh and by the way I fanned you

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