а)
[tex] \frac{ {y}^{2} + 4y}{ {y}^{2} } = y( \frac{y + 4}{y} ) = \frac{y + 4}{y} [/tex]
б)
[tex] \frac{ {x}^{2} - 6x}{ {x}^{2} - 36 } = \frac{x(x - 6)}{(x - 6)(x + 6)} = \frac{x}{x + 6} [/tex]
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а)
[tex] \frac{ {y}^{2} + 4y}{ {y}^{2} } = y( \frac{y + 4}{y} ) = \frac{y + 4}{y} [/tex]
б)
[tex] \frac{ {x}^{2} - 6x}{ {x}^{2} - 36 } = \frac{x(x - 6)}{(x - 6)(x + 6)} = \frac{x}{x + 6} [/tex]
x^2-6x/x^2-36=x*(x-6)/(x-6)(x+6)=x/x+6