`95 – 5 . ( x + 2 ) = 45` `(15 – 9)^3 . 1 + 6^2 + 16`
2 câu trả lời
`95–5.(x+2)=45`
`5.(x+2)=95-45`
`5.(x+2)=50`
`x+2=50:5`
`x+2=10`
`x=10-2`
`x=8`
Vậy `x=8`
`---------`
`(15–9)^3``.1+6^2+16`
`=6^(3).1+6^2+16`
`=6^(2).1.6+6^2+16`
`=6^(2).6+6^2+16`
`=6^(2).(6+1)+16`
`=6^(2).7+16`
`=36.7+16`
`=252+16`
`=268`
$\textit{#Bin}$
`95 - 5. ( x + 2 ) = 45`
`5. ( x + 2 ) = 95 - 45`
`5. ( x + 2 ) = 50`
`x + 2 = 50 : 5`
`x + 2 = 10`
`x = 10 - 2`
`x = 8`
`( 15 − 9 ) ^3 .1 + 6 ^2 + 16`
`= 6 ^3 . 1 + 6 ^2 + 16`
`= 216 .1 + 36 + 16`
`=216 + 36 + 16`
`=252 + 16`
`= 252 + 16`
`= 268`
<>tuyetnhi2010
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