Question

Proszę o pomoc!!! Sumy algebraiczne

Answer 1

y² + 3y - 2y² - 3 + y² = 3y - 3 = 3 * -2 -3 = -6 -3 = -9

2y + xy - x - 2y = xy - x = 1 * -2 - 1 = -2 -1 = -3

3y - 3x - 2y + 2x = y - x = -2 -1 = -3

2y² - y - y² + y = y² = -2 * -2 = 4

3 + 3x - 2xy - x + 2xy = 2x + 3 = 2 * 1 + 3 = 5

1 - xy + x + y - 1 - x = y - xy = -2 -1 * -2 = -2 + 2 = 0

-xy + 2x -3y + xy + 2y = 2x -y = 2 * 1 -(-2) =2 + 2 = 4