A)4x^2-9=0 b)y^2-10y-24=0 c)5x^-8x+3=0 - вопрос №919229842902102405830 от nbolshakova1 15.11.2021 03:09

Question

Математика: A)4x^2-9=0 b)y^2-10y-24=0 c)5x^-8x+3=0

nbolshakova1 · Answer

А) 4х^2=9 х=-3/2 х1=-3/3 , х2=3/2b) y^2+2y-12y-24=0 y*(y+2)-12(y+2)=0 (y+2)*(y-12)=0 y+2=0 y-12=0 y=-2 y=12 y1=-2 y2=12c) 5x^-3x-5x+3=0 x*(5x-3) -(5x-3)=0 (5x-3)*(x-1)=0 5x-3=0 x-1=0 x=3/5 x=1 x1=3/5 x2=1Знак деления /...