Answers

2016-07-14T20:11:53+08:00
2016-07-14T21:31:01+08:00
Sorry, but I'm not sure if I understood the question right or not, hehe.

let x = be the number

2x² + x = 3
2x² + x - 3 = 3 - 3
2x² + x - 3 = 0 
(2x + 3)(x - 1) = 0

2x + 3 = 0
2x + 3 - 3 = 0 - 3 
2x = -3
2x/2 = -3/2
x = -3/2

x - 1 = 0
x - 1 + 1 = 0 + 1
x = 1
0