Odpowiedź:
-3a+3b-2a2-4ab-15+18a+6b=15a+9b-2a2-4ab-15
15*1/2=7,5
9*(-3)= -27
-2a2= (-1/2)2=1/4
-4ab=-4*1/2*(-3)= -2*-3=6
7,5-27+1/4+6-15= 13,75-42= -28,25
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Odpowiedź:
-3a+3b-2a2-4ab-15+18a+6b=15a+9b-2a2-4ab-15
15*1/2=7,5
9*(-3)= -27
-2a2= (-1/2)2=1/4
-4ab=-4*1/2*(-3)= -2*-3=6
7,5-27+1/4+6-15= 13,75-42= -28,25