Question

сократите. дробь!!!!!

Answer 1

$\frac{5a {b}^{2} }{abc} = 5 {a}^{1 - 1} {b}^{2 - 1} {c}^{0 - 1} = 5 {a}^{0} {b}^{1} {c}^{ - 1} = 5b {c}^{ - 1} = \frac{5b}{c}$

1. 3х^2(1+х)
(4х-2)(4х+2)
х^2+5х+6=(х+2)(х+3)

2. 2х(х+3)=0
2х=0; х=0
х+3=0; х=-3