Question

subtract the sum of 4 x square + 7 x y + 3 y square + 1 and 2 x square - 5 x y - 2 y square + 8 from 9 x square - 8 x y + 11 y square​

Answer 1

hello good evening this may be your desired answer

Answer 2

Difference is 3x^2-10xy+10y^2-9