Hi,
1. 12x^2+5x=6x^2+5x |-6x^2-5x
6x^2 = 0 |:6
x^2 = 0
x1,2 = 0
2. 7x^2- 3 4/7=0 |+3 4/7
7x^2 = 3 4/7 = 25/7 |:7
x^2 = 25/49
x1,2 = ±√(25/49) = ±5/7
Alles klar?
Grüße
1)
12x2+5x = 6x2+5x / -5x
12x^2 = 6x^2 /-6x^2
6x^2 = 0 / :6
x = Ι0Ι = 0
2)
7x^2 - 3 4/7 = 0 / +3 4/7
7x^2 = 3 4/7 = 25/7 /:7
x = Ι5/7Ι
x1 = 5/7 x2 = - 5/7
Ein anderes Problem?
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