Question

2) Resolva a equação.(2x - 1)(4x - 3) = 0
( )x= 2/3 e x= - 3/5
( )x= -1/7 e x= -215
( ) x= 1/2 e x= 3/4
( ) x= 2/9 e x= -1/2​

Answer 1

(2x - 1)(4x - 3) = 0. ↓

(2x - 1) = 0 ==> 2x = 1 ==> x'= 1/2

(4x - 3) = 0 ==> 4x = 3 ==> x"= 3/4

( • ) x= 1/2 e x= 3/4