Rozwiąż układy równań: a) { (√8-x)(√8+x)+x²=8y { (y-2x)(y+2x)=(y+1)²-x(4x+2) b) { (x+2)²-(y+2)²=3+(x-3)²-y { x-5y+3*(2x+3)/2-(1½+3y)/3=0

a) { (√8-x)(√8+x)+x²=8y { (y-2x)(y+2x)=(y+1)²-x(4x+2) {8-x²+x²=8y y²-4x²=y²+2y+1 -4x²-2x {y=1 -2y+2x=1 {y=1 -2+2x=1 2x=3 x=3/2 b) { (x+2)²-(y+2)²=3+(x-3)²-y² { x-5y+3*(2x+3)/2-(1½+3y)/3=0 {x²+2x+4-y²-4y-4=3+x²-6x+9-y² x-5y+6x+9/2-1/2-y=0 {8x-3y=12 7/2x-5/2y+4-y=0 {8x-3y=12 /*(-7/2) 7/2x-7/2y=-4/ *3 {-28x+21/2y=-42 21/2x-21/2y=-12 ___________+ -17,5x=-54/:(-17,5) x=3 3/35 -3y=12-8*3 3/35=12-24 24/35=-12 24/35 /:(-3) y=4 24 /35