jennay2 jennay2
  • 15-12-2015
  • Mathematics
contestada

3cubed-5[6-2 (9-2)squared]

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apologiabiology
apologiabiology apologiabiology
  • 15-12-2015
so you want
[tex] 3^{3}-5(6-2(9-2)^{2}) [/tex]
pemdas

do 9-2 firtst
9-2=7

now we have
[tex] 3^{3}-5(6-2(7)^{2}) [/tex]

exponents
[tex] 3^{3} [/tex]=3 times 3 times 3=27
[tex] 7^{2} [/tex]=49

now we have
27-5(6-2(49))
do iner parenthasees multiplication
2(49)=98

now we have

27-5(6-98)
inner parenthasees

27-5(-92)
distribute (a(b+c)=ab+ac)
27-(-460)
27+460=487



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