Oblicza) ( 2a - 3b +5) +(4a -7b +3)-(3a-2b -1)=b) (4a+2b -7)-(a- 3b-4)-(2a -b-3)=prosze pomoc !
a) 2a-3b+5+4a-7b+3-3a+2b+1= 3a-8b+9b) 4a+2b-7-a+3b+4-2a+b+3= a+6bproszę ;)
a] [2a-3b+5]+[4a-7b+3]-[3a-2b-1]=2a-3b+5+4a-7b+3-3a+2b+1=3a-8b+9b] [4a+2b-7]-[a-3b-4]-[2a-b-3]=4a+2b-7-a+3b+4-2a+b+3=a+6b
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a) 2a-3b+5+4a-7b+3-3a+2b+1= 3a-8b+9
b) 4a+2b-7-a+3b+4-2a+b+3= a+6b
proszę ;)
a] [2a-3b+5]+[4a-7b+3]-[3a-2b-1]=2a-3b+5+4a-7b+3-3a+2b+1=3a-8b+9
b] [4a+2b-7]-[a-3b-4]-[2a-b-3]=4a+2b-7-a+3b+4-2a+b+3=a+6b