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2014-04-27T17:08:11+07:00
Diketahui :
 \sqrt{49}    = 7
 \sqrt{25}    = 5
 \sqrt{144} = 12

 \sqrt{49} -  \sqrt{25} x  \sqrt{144}

7 - 5 x 12

= - 53



2014-04-27T17:08:56+07:00
= √49 - √25 × √144 
= 7 - 5 × 12
= -53