Seudónimo Seudónimo
  • 13-03-2017
  • Mathematics
contestada

evaluate the expression 8(2+1)^-4^

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Аноним Аноним
  • 13-03-2017
8(2+1)^4
8(3)^4
8(81)
648


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apologiabiology
apologiabiology apologiabiology
  • 13-03-2017
8(2+1)²-4²

ok
pemdas
parenthaees first
2+1=3
now we gots
8(3)²-4²
exponent before multiply
3²=9
4²=16
now we gots
8(9)-16
multiply
8(9)=72
now we gots
72-16=56
Answer Link

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