Jawabanmu

2014-03-10T15:53:45+07:00
 (4x+5) (x-2) = 4x(x-2)

 (4x+5) (x-2) = 4x(x-2
=4xkuadrat-8x+5x-10= 4x kuadrat -8x
=5x-10=0
=5x=10
=x=2
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2014-03-10T15:57:22+07:00
(4x+5) (x-2) = 4x(x-2)
4x
² -3x -10 = 4x² -8x
4x² - 4x² = -8x + 10
8x = 10
x = 10/8
x = 1,25

MAAF KALO SALAH :)
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