Answers

2014-08-05T19:44:41+08:00
4/x - 2x+1/5=0

20-x(2x+1)/5=0 20-2x-x/5x=0

[20-2x2-x/5x=0]5x

20-2x-x=0

-2x2-x+0

lahat ng after x is superscript 2

0