Oblicz wartosci dla
a) x=3
b)x=-5
c)x=
d)x=0,1
oblicz wartosc wyrazeb 3x-2y+xy
a=3 i y=-2
x=-
c)x=0,2 i y= 1.6
2*3^2-3*3+1=18-9+1=10
2*5^2-3*5+1=50-15+1=36
2*1/2^2-3*1/2+1=1/2-3/2+1=0
2*0,1^2-3*0,1+1=0,02-0,3+1=0,72
3*3-2*(-2)+3*(-2)=9+4-6=7
3*(-1/3)-2*1/4+(-1/3)*1/4=-1-1/2-1/12=-1-6/12-1/12=-1 i 7/12
3*0,2-2*1,6+0,2*1,6=0,6-3,2+0,2=-2,4
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2*3^2-3*3+1=18-9+1=10
2*5^2-3*5+1=50-15+1=36
2*1/2^2-3*1/2+1=1/2-3/2+1=0
2*0,1^2-3*0,1+1=0,02-0,3+1=0,72
3*3-2*(-2)+3*(-2)=9+4-6=7
3*(-1/3)-2*1/4+(-1/3)*1/4=-1-1/2-1/12=-1-6/12-1/12=-1 i 7/12
3*0,2-2*1,6+0,2*1,6=0,6-3,2+0,2=-2,4