How do you evaluate $[( 9\times 2) - ( 3\times 4) ] \times 2$ ?

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Answer 1 · 2018-03-05T23:18:45

12

$[(9*2) -(3*4)] *2$

$(18 - 12)*2$

$6*2$

12

Answer 2 · 2018-03-05T23:25:06

The result is $12$ .

First, do the steps on the innermost parentheses, then the outer ones:

$color(white)=[(9xx2)-(3xx4)]xx2$

$=[stackrel(18) overbrace((9xx2)) - stackrel(12) overbrace((3xx4))] xx2$

$=[18-12]xx2$

$=[stackrel6 overbrace(18-12)]xx2$

$=6xx2$

$=stackrel12 overbrace(6xx2)$

$=12$

How do you evaluate [( 9\times 2) - ( 3\times 4) ] \times 2[( 9\times 2) - ( 3\times 4) ] \times 2?