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-[-506+732-(-2000)(]-(506-1738)
=-506-732+200-506+1738
=(-506+506)+(1732-732)-2000
=0+1000-2000=-1000
![](https://rs.olm.vn/images/avt/0.png?1311)
A = [ - 506 + 732 - ( - 2000 )]-( 506 1732)
A = [ 226 + 2000 ]-506 + 1732
A = 174 - 506 + 1732
A = 1268 + 1732
A = 3000
![](https://rs.olm.vn/images/avt/0.png?1311)
A= [ -506 + 732 - ( -2000 ) ] - (- 1226)
A= (- 426 ) + (- 1226 )
A= - 1625
![](https://rs.olm.vn/images/avt/0.png?1311)
A=-[-506+732-(-2000)]-(506-1732)
A=-[226+2000]-506+1732
A=1774-506+1732
A=1268+1732
A=3000
K MK NHE
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=-\left[-506+732-\left(-2000\right)\right]-\left(506-1732\right)\)
\(\Rightarrow A=-\left(-506+732+2000\right)-\left(506-1732\right)\)
\(\Rightarrow A=506-732-2000-506+1732\)
\(\Rightarrow A=\left(506-506\right)+\left(1732-732\right)-2000\)
\(\Rightarrow A=0+1000-2000\)
\(\Rightarrow A=-2000+1000\)
\(\Rightarrow A=-\left(2000-1000\right)\)
\(\Rightarrow A=-1000\)
\(A=-\left[-506+732-\left(-2000\right)\right]-\left(506-1732\right)\)
\(\Leftrightarrow A=-\left(-506+732+2000\right)-\left(506-1732\right)\)
\(\Leftrightarrow A=506-732-2000-506+1732\)
\(\Leftrightarrow A=\left(506-506\right)+\left(1732-732\right)-2000\)
\(\Leftrightarrow A=0+1000-2000\)
\(\Leftrightarrow A=1000-2000=-1000\)
Vậy ....................
![](https://rs.olm.vn/images/avt/0.png?1311)
A = -[-506+732-(-2000)]-(506-1732)
A = -[ 226 -(-2000)]-( -1226)
A = -2226 -( -1226)
A = -1000
= - 3000 ban nha nho tk mk nha