4x^2-9=0 y^2-10y-24=0 5x-8x+3=0
1) x^2=9/4 х₁=-3/2 х₂=+3/2 х₁=-1.5 х₂=+1.5 2) у₁=(10+√(100-4*(-24)):2 у₁=12 у₂=(10-√(100-4*(-24)):2 у₂=-2 3) -3х+3=0 , 3=3х ,1=х