Page 43 - MATRIK SMK KELAS X_NAOMI TRI MADA

Bahasan

4 3  a b  16 3 
 x   =  






 1 2   c d   9 7 
a b  1  2 −3   16 3 
  =      




 c d  8 −3  −1 4   9 7 

a b  1  32 − 27 6 − 21 
  =  




 c d  5  −16 + 36 −3 + 28 

1  5 −15 
=  


5  20 25 

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