√5-10=2-x срочно!!!!!!!!!
там 5 или 5х?
√(5x-10) = 2-x √(5x-10)² = 2²-x² 5x-10 = 4-x² 5x-10-4+x² = 0 x²+5x-14 = 0 D=25+56=81. -5+√81 -5+9 4 x₁ = ______ = _____ = ___ = 2. 2 2 2 -5-√81 -5-9 -14 x₂ = ______ = _____ = ___ = -7. 2 2 2 Ответ : -7 ; 2.