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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