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calculati: (6-2/3)²x18/8;   (-2/3)²x[0,(3)+1/2:(-0,75)]..       Ajutor

Răspuns :

Miky93ask
[(18-2)/3]² * 9/2=  (16/3)² * 9/2=  256/9  * 9/2=  128



4/9 * [3/9 + 1/2 : (- 75/100)]=

=4/9 * [1/3 + 1/2 : (-3/4)]=

=4/9 * [1/3 + 1/2 *( -4/3)]=

=4/9 * (1/3 -2/3)=

=4/9 * ( -1/3)= - 4/27

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