x²+(1000-x)²=4x²(x-1000)²=3x²x-1000=√3x或x-1000=-√3x(√3-1)x=-1000或(√3+1)x=1000x=-1000/(√3-1)或x=1000/(√3+1)x=-500(√3+1)或x=500(√3-1)x=-500√3-500或x=500√3-500...