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 3x-4y from -8x-3y

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

Subtract the sum of - 3x^3y^2 + 2x^2 y^3 and - 3x^2y^3 - 5y^4 " from " x^4 + x^3y^2 + x^2y^3 + y^4

If r_(1), r_(2) " and " r_(3) are the radii of the circle x^(2) + y^(2) - 4x + 6y = 5 , x^(2) + y^(2) + 6x - 4y = 3 " and " x^(2) + y^(2) - 2x + 4y = 8

Subtract: x^2-3x y+7y^2-2 from 6x y-4x^2-y^2+5

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

" (2) "3x+y=-1,2x-3y=-8

In the algebraic expression 5x^2y+7x y^2-3x y-4y x^2, we have 5x^2y and -4y x^2 as like terms, whereas 7x y^2 and -3x y are unlike terms.