1. (x+2)(x+3)[tex] \frac{x^{2}+5x+6}{x+2}= \frac{(x+2)(x+3)}{x+2} = \frac{x+3}{1} =x+3[/tex][tex] x^{2}+2x+3x++6= x^{2}+5x+6[/tex])
2. a=[tex] \frac{1}{ \sqrt{3} -2} + \frac{3}{ \sqrt{3} } = \frac{ \sqrt{3}+2}{( \sqrt{3}+2)( \sqrt{3}-2 } + \sqrt{3} [/tex]
[tex] \frac{ \sqrt{3} -2}{3-4} + \sqrt{3} =- \sqrt{3}+2+ \sqrt{3}=2[/tex]