Rozwiąż równanie:
2a+1 a+3
____ = ____
2a a-1
2a+1 a +3
____=______ =(2a + 1)*(a-1) = (a+3)*2a (mnozymy stronami przez 2a = a-1 )
2a a -1
2a^2 -2a+a - 1 = 2a^2+6a
2a^2 -2a^2 -2a +a-6a = 1
- 7 a = 1 /:(-7)
a = -1/7
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2a+1 a +3
____=______ =(2a + 1)*(a-1) = (a+3)*2a (mnozymy stronami przez 2a = a-1 )
2a a -1
2a^2 -2a+a - 1 = 2a^2+6a
2a^2 -2a^2 -2a +a-6a = 1
- 7 a = 1 /:(-7)
a = -1/7