X^2=3x+4y y^2= 4x+3y
X^2=3x+4y -4у=3х-х^2 X^2=3x+4y X^2=3x+4y,0=0 у^2=3х+4у -4х=3у-у^2 х=-3/4у+1/4у^2 х=-3/4у+1/4у^2;0=0