Question

18xy((x⁴/4)-(y²/3))((x³/2)+(y³/9)) where x=-1 and y=3

Answer 1

Step-by-step explanation:

18(-1)(3) (( -1^4/4) - ( 3^2 / 3))((-1^3/2) + (3^3 / 9))

= -54(( 1/4) - (9/3)) (( -1/2) +(27/9))

= -54(1/4 - 3) ( -1/2 + 3)

= -54( -11/4) ( -5/2)

= -54(55/8)

= -27(55/4)