Question

simplificati raportul :

$\frac{a { }^{2} + 6a + 9}{5a + 15} =$

Answer 1

[tex]\frac{a^2+6a+9}{5a+15}=\frac{(a+3)^2}{5(a+3)}\\ simplificam\:prin\:a+3\\ \\ =\frac{a+3}{5}[/tex]