Question

e) (3x ^ 2 - 13x - 10)/(3x ^ 2 - 17x + 10) ​

Answer 1

Ответ:

$\frac{ {3x}^{2} - 13x - 10}{ {3x}^{2} - 17x + 10 } = \frac{ {3x}^{2} + 2x - 15x - 10}{ {3x}^{2} - 2x - 15x - 10 } = \frac{x \times (3x + 2) - 5(3x - 2)}{x \times(3x - 2) - 5(3x - 2) } = \frac{(3x + 2 )\times( x - 5)} {(3x - 2 )\times( x - 5)} = \frac{3x + 2}{3x - 2}$