Question

Сократите рациональную дробь.

9x²+6x+1/3x+1

2x-4/x²-4x+4

Answer 1

$\frac{9x {}^{2} + 6x + 1 }{3x + 1} = \frac{(3x + 1)(3x + 1)}{3x + 1} = 3x + 1 \\ \\ \\ \frac{2x - 4}{ {x}^{2} - 4x + 4 } = \frac{2(x - 2)}{(x - 2)(x - 2)} = \frac{2}{x - 2}$