Jawabanmu

2014-01-11T13:45:43+07:00
(x - 2)(5x + 1)
= x(5x + 1) - 2(5x + 1)
= 5x² + x - 10x - 2
= 5x² - 9x - 2
makasih ya udah jawab pertanyaan aku :)
2014-01-11T16:34:00+07:00
(x-2) (5x+1)
x(5x+1) -2(5x+1)
5x²+x -10x -2
5x² -9x -2