Question

Faktorkanlah!
1.)9x²- x
2.)10x²y + 5xy - 20x

Answer 1

1. 9x² - x = x ( 9x - 1)
           x = 0 atau x = 1/9

2.10x²y + 5xy - 20x = 5x (2xy + y - 4)

Answer 2

9 x^{2} - x= x(9x-1) x = 0 dan 9x=1==x= \frac{1}{9}