DZIAŁ FUNKCJE WYMIERNE, TEAT RÓWNANIA WYMIERNE
rozwiąż równanie;
f) x+1 2
----- - ----- = 0
2x-1 x
e) x+1 x+1
------ = -----
x 2x+1
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e) x+1 2
____=____
2x-1 x
(x+1)x=2(2x-1)
x²+x=4x-4
x²-3x+2=0
a=1
b=-3
c=2
Δ=9-4x2
Δ=1
x1=1
x2=2
f) (x+1)(2x+1)=x(x+1)
2x²+x+2x+1=x²+x
x²+2x+1=0
a=1
b=2
c=1
Δ=4-4×1×1
Δ=0
b
x= - ____
2a
x=-2/2
x=-1
f) (x+1)(2x+1)=x(x+1)
2x²+x+2x+1=x²+x
x²+2x+1=0
Δ=4-4×1×1
Δ=0
b
x= - ____
2a
x=-2/2
x=-1
e) x+1 2
____=____
2x-1 x
(x+1)x=2(2x-1)
x²+x=4x-2
x²-3x+2=0
Δ=9-4*2*1
Δ=1
x1=1
x2=2