Question

subtract
the sum of 16 X square - 4 x y + Y square and 3 X square + 8 x square minus y square from the sum of 6 x square - 8 x square minus y square and 3 x square - 4 x y + 2 y square​

Answer 1

16x^2-4xy+y^2 + 3x^2+8x^2-y^2 from 6x^2-8x^2-y^2 + 3x^2-4xy+2y^2

27x^2-4xy from x^2-y^2-4xy

x^2-y^2-4xy-(27x^2-4xy)

x^2-y^2-4xy-27x^2+4xy

-26x^2-y^2