1) 2x/x-3 + 11/2=3/x 2) 2x-8/x-5 + 10/(x-5)(x+5) - вопрос №7298474123112322851055453221242 от Huran 18.07.2021 20:54

Question

Алгебра: 1) 2x/x-3 + 11/2=3/x 2) 2x-8/x-5 + 10/(x-5)(x+5) =x+4/x+5 3) 2/2-x + 1/2=4/2x+x^2

Huran · Answer

2-3+5.5=3/x4.5=3/x4.5=3/x. x04.5x=3x=3/4.5x=3/45/10x=10/15x=2/3. x неравен 01-x+1/2=2x+x22+1/2-x=2x+x23/2-x=2x+x22*3/2-2x=2*2x+2x23-2x=4x+2x23-2x-4x-2x2=03-6x-2x2=0-2x2-6x+3=02x2+6x-3=0ищем дискриминантx1=-3-корень15/2x2=-3+корень15/2...