DETERMINE AS RAÍZES DESTAS EQUAÇÕES: A) x² -3x +2=0
B) 4x² -4x-35=0
C)2x²-x-1=0
D)9x² -18x -7=0
E) 12 -4x(1-x)=x² -2x-7
F)x(x-2)=2(x+6)
G)(4x-3) (4x+3) -8x(x-2)=-17
H) (3-2x)² - 4(6-x) +3x=-9
I) x² + _5_ x= _4_
9 9
B) 4x² -4x-35=0
C)2x²-x-1=0
D)9x² -18x -7=0
E) 12 -4x(1-x)=x² -2x-7
F)x(x-2)=2(x+6)
G)(4x-3) (4x+3) -8x(x-2)=-17
H) (3-2x)² - 4(6-x) +3x=-9
I) x² + _5_ x= _4_
9 9
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