Hello there! My name is Jonathan.
f ( x ) = − 12 108 x 4 + 8 x 3 + 12 x 2 − 4 x 2 − 2.7 ( 6 − 14 ) + 3 {\displaystyle f(x)=-{\frac {12}{108}}x^{4}+8x^{3}+12x^{2}-4x^{2}-2.7(6-14)+3}