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[tomek205]

1. \(\frac{1}{x+3} \cdot \frac{x^2-9}{2x} =\)?
2.\(\frac{x^2-6x}{x+3} : \frac{x}{x+2} =\) ?
3. \(\frac{3}{x} + \frac{6}{x-2} =\) ?

[aggatka004]

1. \(\frac{1}{x+3} \cdot \frac{x^2-9}{2x} = \frac{x^2-9}{2x(x+3)}= \frac{(x+3)(x-3)}{2x(x+3)}= \frac{x-3}{2x}\)

[aggatka004]

3. \(\frac{3}{x} + \frac{6}{x-2} =\frac{3(x-2)+6x}{x(x-2)}=\frac{3x-6+6x}{x(x-2)}=\frac{9x-6}{x(x-2)}\) (ja bym zrobila tak)

[tomek205]

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