Seudónimo
Seudónimo
13-03-2017
Mathematics
contestada
evaluate the expression 8(2+1)^-4^
Respuesta :
Аноним
Аноним
13-03-2017
8(2+1)^4
8(3)^4
8(81)
648
Answer Link
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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