Jawabanmu

2014-08-24T20:17:40+07:00
[tex]2 x^{2} dikali 5 = 10 x^{2} => a x b = 10 x^{2} => a + b = 7x => a =  5x ,  b = 2x
[tex]2 x^{2} + 5x +2x + 5
x ( 2x+5) +1 (2x+5)
( x+1 ) (2x + 5)
p = x + 1
2 5 2