(x-2)² -2(x-2y)=1-(3-x) (3+x) 2x+y=4

(x-2)² -2(x-2y)=1-(3-x) (3+x) 2x+y=4 x²-4x+4-2x+4y=1-(9+3x-3x-x²) y=4-2x x²-6x+4+4y=1-9+x² y=4-2x -6x+4y+4=-8 y=4-2x -6x+4*(4-2x)+4=-8 y=4-2x -6x+16-8x+4=-8 -14x=-8-16-4 -14x=-28 /:(-14) x=2 y=4-2*2 y=4-4 y=0

{(x-2)² -2(x-2y)=1-(3-x) (3+x) {2x+y=4 {x² - 4x + 4 -2x + 4y = 1 - (9 - x²) {2x + y = 4 {x² - 4x + 4 - 2x + 4y = 1 - 9 + x² {2x + y = 4 {x² - x² - 4x - 2x + 4y = 1 - 9 - 4 {2x + y = 4 {-6x + 4 y = -12 {2x + y = 4 /× (-4) {-6x + 4y = -12 {-8x - 4y = -16 -14x = -14 /: (-21) x = 14/21 = 2/3 (dwie trzecie) 2x + y = 4 2 × 2/3 + y = 4 y = 4 - 4/3 y = 2 i 2/3 (dwa i dwie trzecie) {x = 2/3 {y = 2 i 2/3