2x2 - 16x + 43
= 2* ( x^2 - 8x + 21,5 )
= 2* ( x^2 - 8x + 16 - 16 + 21,5 )
= 2*( ( x - 4 )^2 - 16 + 21,5 )
= 2*( ( x - 4 )^2 + 5,5 )
= 2* ( x - 4 )^2 + 11
SP ( 4 / 11 )
2x2 - 16x + 43
= 2* ( x^2 - 8x + 21,5 )
= 2* ( x^2 - 8x + 16 - 16 + 21,5 )
= 2*( ( x - 4 )^2 - 16 + 21,5 )
= 2*( ( x - 4 )^2 + 5,5 )
= 2* ( x - 4 )^2 + 11
SP ( 4 / 11 )