Wyrażenia algebraiczne. Zapisz w jak najprostszej postaci. a) (3a-2b+4c)-(-5a+4b-c)= b) -(6a-2b+1)+(5a+7b-8)= c) -(-3a+4b-9)-(2a-7b+10)= d) (7a+8b+10)-(4b-5a-2)= e) (-3x-4y+6)+(2x+5y+1)= f) (6a+12b-8)-(a-b+4)= g) 12x-3y+1-(6y-5x-4)= Proszę o pomoc :)
KibicemJestem
A) (3a-2b+4c)-(-5a+4b-c)= 3a-2b+4c-5a-4b+c= -2a-6b-5c b) -(6a-2b+1)+(5a+7b-8)= -6a+2b-1+5a+7b-8= -a+9b-9 c) -(-3a+4b-9)-(2a-7b+10)= 3a-4b+9-2a+7b-10= a+3b-1 d) (7a+8b+10)-(4b-5a-2)= 7a+8b+10-4b+5a+2 = 12a+4b+12 e) (-3x-4y+6)+(2x+5y+1)= -3x-4y+6+2x+5y+1= -x+y+7 f) (6a+12b-8)-(a-b+4)= 6a+12b-8-a+b-4= 5a+13b-12 g) 12x-3y+1-(6y-5x-4)= 12x-3y+1-6y+5x+4= 17x-9y+5
b) -(6a-2b+1)+(5a+7b-8)= -6a+2b-1+5a+7b-8= -a+9b-9
c) -(-3a+4b-9)-(2a-7b+10)= 3a-4b+9-2a+7b-10= a+3b-1
d) (7a+8b+10)-(4b-5a-2)= 7a+8b+10-4b+5a+2 = 12a+4b+12
e) (-3x-4y+6)+(2x+5y+1)= -3x-4y+6+2x+5y+1= -x+y+7
f) (6a+12b-8)-(a-b+4)= 6a+12b-8-a+b-4= 5a+13b-12
g) 12x-3y+1-(6y-5x-4)= 12x-3y+1-6y+5x+4= 17x-9y+5