\left. \begin{array} { l } { - 7 x ^ { 3 } + 3 x ^ { 2 } + 11 x - 9 \text { for } x = - 2 } \\ { 4 y ^ { 2 } - 3 y + 8 \text { for } y = - 3 } \\ { 14 x ^ { 2 } y + 3 x y ^ { 2 } + 2 x y - 5 \text { for } x = 1 \text { and } y = ? } \end{array} \right.

\left. \begin{array} { l } { - 7 x ^ { 3 } + 3 x ^ { 2 } + 11 x - 9 \t

1.	\left. \begin{array} { l } { - 7 x ^ { 3 } + 3 x ^ { 2 } + 11 x - 9 \text { for } x = - 2 } \\ { 4 y ^ { 2 } - 3 y + 8 \text { for } y = - 3 } \\ { 14 x ^ { 2 } y + 3 x y ^ { 2 } + 2 x y - 5 \text { for } x = 1 \text { and } y = ? } \end{array} \right.
Answer» the value of a) when x = -2 , -7(-2)³+3(-2)²+11(-2)-9 = +56+12-22-9 = 37b) when y =-3, 4(-3)²-3(-3)+8 = 36+9+8 = 53.c) when x = 1 and y = 2 14(1)²(2)+3(1)(2)²+2(1)(2)-5 = 28+12+4-5 = 39