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a] [2a-3b+1]-[3a+2b-4]-[a-6b+2]=2a-3b+1-3a--2b+4-a+6b-2=-2a-6b+3=-2*-3-6*-5+3=6+30+3=39b] -[3a-2b-3c]+[5a-4b+4c]-[a-5b-c]=-3a+2b+3c+5a-4b+4c-a+5b+c=a+3b+8c=-6+3*3+8*-1=-6+9-8=-5c] [2x^+3x-5]-[3x^-5x+8]=2x^+3x-5-3x^+5x-8=-x^+8x-13=-3^+8*3-13=9+24-13=20d) -(3-2x+4x^)+(1-3x-6x^)= -3 +2x -4x^+1-3x-6x^= -10x^ - x-2= -10(-3)^-1*(-3)-2= -10*9+3-2= -90+3-2= -89e) -(2x-x^)- [ 2-3x- (2x^- 3x + 4 )]= -2x + x^ (2-3x-2x^+3x-4]=-2x+x^-2+3x+2x^-3x+4=3*[1/2]^-2*1/2-2=-3/4f]3-[-{2x-3x^}+{1-3x+x^}]+4x^=3-[-2x+3x^+1-3x+x^]=3+2x-3x^-1+3x-x^=3+2*[-0,3]-3*[0,3]^-1+3*[-0,3]-[-0,3]^=3+0,6-0,27-1-0,9-0,09=1,34prosze bardzo^-to znak do potegi*-to znak mnozenia
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a] [2a-3b+1]-[3a+2b-4]-[a-6b+2]=2a-3b+1-3a--2b+4-a+6b-2=-2a-6b+3=-2*-3-6*-5+3=6+30+3=39
b] -[3a-2b-3c]+[5a-4b+4c]-[a-5b-c]=-3a+2b+3c+5a-4b+4c-a+5b+c=a+3b+8c=-6+3*3+8*-1=-6+9-8=-5
c] [2x^+3x-5]-[3x^-5x+8]=2x^+3x-5-3x^+5x-8=-x^+8x-13=-3^+8*3-13=9+24-13=20
d) -(3-2x+4x^)+(1-3x-6x^)= -3 +2x -4x^+1-3x-6x^= -10x^ - x-2= -10(-3)^-1*(-3)-2= -10*9+3-2= -90+3-2= -89
e) -(2x-x^)- [ 2-3x- (2x^- 3x + 4 )]= -2x + x^ (2-3x-2x^+3x-4]=-2x+x^-2+3x+2x^-3x+4=3*[1/2]^-2*1/2-2=-3/4
f]3-[-{2x-3x^}+{1-3x+x^}]+4x^=3-[-2x+3x^+1-3x+x^]=3+2x-3x^-1+3x-x^=3+2*[-0,3]-3*[0,3]^-1+3*[-0,3]-[-0,3]^=3+0,6-0,27-1-0,9-0,09=1,34
prosze bardzo
^-to znak do potegi
*-to znak mnozenia