oblicz wartosc wyrazenia 2x kwadrat -3x+1 dla a x=3 bx=-5 cx=jedna druga dx=0,1
daje naj
2x²-3x+1
a. x=3
2*3²-3*3+1 = 18-9+1 = 10
b. x=-5
2*(-5)²-3*(-5)+1 = 50+15+1 = 66
c. x=½
2*(½)²-3*½+1 = ½-3/2+1 = 0
d. x=0,1
2*0,1²-3*0,1+1 = 0,02-0,3+1 = 0,72
a)
b)
c)
d)
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2x²-3x+1
a. x=3
2*3²-3*3+1 = 18-9+1 = 10
b. x=-5
2*(-5)²-3*(-5)+1 = 50+15+1 = 66
c. x=½
2*(½)²-3*½+1 = ½-3/2+1 = 0
d. x=0,1
2*0,1²-3*0,1+1 = 0,02-0,3+1 = 0,72
a)
b)
c)
d)