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Evaluate 3{5 + 3[10 + 4·8]}

 Jul 9, 2015

Best Answer 

 #1
avatar+22569 
+5

Evaluate 3{5 + 3[10 + 4·8]}

 

$$\small{\text{$
\begin{array}{rclcl}
3\cdot \{5 + 3\cdot [10 + 4\cdot 8]\}\\
&=&3\cdot 5 + 3\cdot 3\cdot(10+4\cdot 8)\\
&=& 15 + 9 \cdot(10+4\cdot 8)\\
&=& 15 + 9\cdot 10 + 9\cdot 4\cdot 8\\
&=& 15+90 + 36\cdot 8\\
&=& 15 + 90 + 288\\
&=& 105 + 288 \\
&=& 393
\end{array}
$}}$$

 

 Jul 9, 2015
 #1
avatar+22569 
+5
Best Answer

Evaluate 3{5 + 3[10 + 4·8]}

 

$$\small{\text{$
\begin{array}{rclcl}
3\cdot \{5 + 3\cdot [10 + 4\cdot 8]\}\\
&=&3\cdot 5 + 3\cdot 3\cdot(10+4\cdot 8)\\
&=& 15 + 9 \cdot(10+4\cdot 8)\\
&=& 15 + 9\cdot 10 + 9\cdot 4\cdot 8\\
&=& 15+90 + 36\cdot 8\\
&=& 15 + 90 + 288\\
&=& 105 + 288 \\
&=& 393
\end{array}
$}}$$

 

heureka Jul 9, 2015

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