Question

14 si 15 subpunctul b va rog frumos!​

Answer 1

14) b) $\frac{25x^{2} }{5x^{2}+5x } = \frac{25x^{2} }{5(x^{2}+x) } = \frac{5x^{2} }{x^{2}+x }$

15) b) $\frac{(x-3)^2}{x^{2}-7x+12 } = \frac{(x-3)^2}{x^{2}-4x-3x+12} = \frac{(x-3)^2}{x(x-4)-3(x-4)} =\frac{(x-3)^2}{(x-4)(x-3)} = \frac{x-3}{x-4}$