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b)2z+t-3z+4t-1=-z+5t-1=-5+5*0,1-1=-6+0,5=-5,5
c)13x-2y+7-9x+y-4+x-3=5x-y=5*0,2-(-1)=1+1=2
d)n^2+n-7+3n^2-n-9-n+16=4n^2-n=4*(-1/2)^2-(-1/2)=4*1/4+1/2=1,5
*=razy
^2=do drugiej potęgi
b)2z+t-3z+4t-1=-z+5t-1=-5+5*0,1-1=-6+0,5=-5,5
c)13x-2y+7-9x+y-4+x-3=5x-y=5*0,2-(-1)=1+1=2
d)n^2+n-7+3n^2-n-9-n+16=4n^2-n=4*(-1/2)^2-(-1/2)=4*1/4+1/2=1,5
b) 2z+t-3z+4t-1= 2*5+0,1-3(5)+4(0,1)-1= 10+0,1-15+4,1= -1,8
c)13x-2y+7-9x+y-4+x-3= 13(o,2)- 2(-1)+7-9(0,2)-1-4+0,2-3= 2,6+2+7-1,8-1-4+0,2-3= 2
d) -1/4/1/2-7-3/4-1/2-9-1/2+16= -1-7-1-9+16= -18+16= -2