Question

Сократить дробь
а)y²+4y/y²

б)x²-6x/x²-36​

Answer 1

а)

$\frac{ {y}^{2} + 4y}{ {y}^{2} } = y( \frac{y + 4}{y} ) = \frac{y + 4}{y}$

б)

$\frac{ {x}^{2} - 6x}{ {x}^{2} - 36 } = \frac{x(x - 6)}{(x - 6)(x + 6)} = \frac{x}{x + 6}$

Answer 2

y^2+4/y^2=y*(y+4)/y=y+4

x^2-6x/x^2-36=x*(x-6)/(x-6)(x+6)=x/x+6