From the sum of `3x+2x^2-y^2 and 6y-5y^2+3x^2+4x`, subtract the sum of `x^2-2y^2+3x-5y and 3x^2+2y^2-4x-y`

From the sum of 5x-3x^2+y^2 and 8x-3y^2-x^2+x subtract the sum of 2x^2+y^2+4x-2y and x^2+y^2-3x-2y

Subtract the sum of (x^2+2y^2+7x^2y) and (x^2-3xy^2) from the sum of (x^2-y^2-xy) and (3x^2-2y^2-7)

Subtract the sum of x^(2)-5xy +2y^(2) and y^(2)-2xy -3x^(2) from the sum of 6x^(2)-8xy-y^(2) and 2xy-2y^(2)-x^(2) .

Add x^2+2x y+y^2 to the sum of x^2-3y^2 and 2x^2-y^2+9.

From the sum of x^2+3y^2-6x y ,2x^2-y^2+8x y , y^2+8 and x^2-3x y\ subtract -3x^2+4y^2-x y+x-y+3.

Subtract x^2-3y^2-6xy from the sum of 3x^2-y^2+8xy and 5y^2-3x^2+3xy

Subtract the sum of x^2+2x+2 and xy^2+3 from the sum of 2x^2+5x-1 and y^2+x^2y-3

Find the product of : 4x^(2) - 5y^(2) and 3x^(2) +2y^(2)

Subtract the sum of 13 x-4y+7z and -6z+6x+3y from the sum of 6x-4y-4z and 2x+4y-7.

Write each of the following statement by using appropriate grouping symbols: The sum of a-b and 3a-2b+5 is subtracted from 4a+2b-7. Three times the sum of 2x+y-{5-(x-3y)} and 7x-4y+3 is subtracted from 3x-4y+7. The subtraction of x^2-y^2+4x y from 2x^2+y^2-3x y is added to 9x^2-3y^2-x ydot