(4x-7)/(x-1)
Объяснение:
(4x^2-3x-7)/(x^2-1) = ((4x-7)(x+1))/((x-1)(x+1)) = (4x-7)/(x-1)
4x^2-3x-7=0
D=9+112=121
√121=11
x=(3±11)/8 = -1 ; 7/4
4(x - 7/4)( x + 1) = (4x-7)(x+1)
(4x^2-3x-7)/(x^2-1) = ((4x-7)(x+1))/((x-1)(x+1)) = (4x-7)/(x-1)
4x^2-3x-7=0
D=9+112=121
√121=11
x=(3±11)/8 = -1 ; 7/4
4(x - 7/4)( x + 1) = (4x-7)(x+1)
Объяснение:
