Question

cum se rezolva exercitiul 2x²-7x+3÷ x²-9

Answer 1

Răspuns:

(2x² - 7x + 3)/(x² - 9) =

= (2x² - x - 6x + 3)/(x - 3)(x + 3)

= $\frac{x(2x-1)-3(2x-1)}{(x-3)(x+3)}$

=$\frac{(x-3)(2x-1)}{(x-3)(x+3)}$

=$\frac{2x-1}{x+3}$