how do i subract this problem
2007-11-12 07:20:07 · 6 answers · asked by Tasha 1 in Science & Mathematics ➔ Mathematics
--4 x ² + 2 x y - 3 y ²
-----x² + 3 x y + y ²
3x ² - x y - 4 y ² (upon subtraction)
2007-11-16 05:06:01 · answer #1 · answered by Como 7 · 1⤊ 0⤋
you put the like terms in column just like a regular subtraction problem so:
4x2 - 3y2 +2xy
-- (x2 + y2 + 3xy) the negative makes the + and - reverse so it becomes:
4x2 - 3y2 +2xy
-- x2 - y2 - 3xy
______________
3x2 - 4y2 - xy I think, it has been about 40 years so not sure
2007-11-12 07:35:20 · answer #2 · answered by DJ P 4 · 0⤊ 0⤋
Simplify?: = (4x² + 2xy - 3y²) + (2x² + 5xy - 2y²) = 4x² + 2xy - 3y² + 2x² + 5xy - 2y² = 6x² + 7xy - 5y² answer: 6x² + 7xy - 5y² element?: 6x² + 7x - 5y² = 0 x² + 7/6xy = 5/6y² x² + 7/12xy = 5/6y² + (7/12y)² x² + 7/12xy = one hundred twenty/144y² + 40 9/144y² (x + 7/12y)² = 169/144y² x + 7/12y = 13/12y = x + 7/12y - 13/12y, = x - 6/12y, = x - a million/2y, = 2x - y = x + 7/12y + 13/12y, = x + 20/12y, = x + 5/3y = 3x + 5y answer: (2x - y)(3x + 5y)
2016-10-16 06:44:03 · answer #3 · answered by Erika 4 · 0⤊ 0⤋
(x² + y² + 3xy) - (4x² + 2xy - 3y²)
= (x² - 4x²) + (y² - -3y²) + (3xy - 2xy)
As two minuses equal a positive then:
-3x² + 4y² + xy
2007-11-12 07:36:17 · answer #4 · answered by Anonymous · 0⤊ 1⤋
4x^2 + 2xy - 3y^2
x^2 + 3xy + y^2
- - - - - - - - - - - -
3x^2 - xy - 4y^2
2007-11-12 07:29:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
3x^2 - 4y^2 - xy
2007-11-12 07:23:20 · answer #6 · answered by Matt 3 · 0⤊ 0⤋