Jawabanmu

Jawaban paling cerdas!
2014-03-26T09:21:33+07:00
X² - 8x + 6 = 0
 x_{1}+ x_{2} = 8  \\  x_{1}. x_{2} =6


persamaan baru akarnya tiga lebihnya dari akar2 yang lama.
α =  x_{1} + 3, β =  x_{2} + 3

 \alpha +  \beta  = x_{1} + 3 + x_{2} + 3 = x_{1} + x_{2} + 6 = 14 \\ \alpha . \beta =(x_{1} + 3) . ( x_{2} +3) =( x_{1} . x_{2} ) + 3( x_{1} + x_{2}) + 9 = 6 + 3.8 + 9 = 39

y = x² - (α + β)x + α.β
y = x² - 14x + 39  ............... (A)