Question

Faktorkanlah :
1. 10 x^{2} - 19 x + 6 =
2. 6 x^{2} - 11 x +3 =
3. 3 x^{2} -14 x + 15 =
4. 8 y^{2} + 20 y +15 =
5. 8 x^{2} - 14 x +5 =
tolong jawab

Answer 1

1. 10x^2 - 19x + 6 = 10x^2 - 15x - 4x + 6 
---------------------------= 5x ( 2x - 3 ) - 2 ( 2x - 3 )
---------------------------= ( 5x - 2 ) ( 2x - 3 )
2. 6x^2 - 11x + 3 = 6x^2 - 2x - 9x + 3 
-------------------------= 2x ( 3x - 1 ) - 3 ( 3x - 1 )
-------------------------= ( 2x - 3 ) ( 3x - 1 )
3. 3x^2 - 14x + 15 = 3x^2 - 9x - 5x + 15 
---------------------------= 3x ( x - 3 ) - 5 ( x - 3 )
---------------------------= ( 3x - 5 ) ( x - 3 )
4. mungkin maksud nya 24 y ? 
5. 8x^2 - 14x + 5 = 8x^2 - 4x - 10x + 5
-------------------------= 4x ( 2x - 1 ) - 5 ( 2x - 1 )
-------------------------= ( 4x - 5 ) ( 2x - 1 )