(5/ (3-х) - 4х) : (4х^2 - 12x + 5)/ (x - 3)^2 = (x - 3)^2
1) 5/(3 - x) - 4x = 5 - 4x(3 - x) = 5 - 12x + x^2
2) (5 - 12x + x^2) : (4x^2 - 12x + 5)/ (x-3)^2 =
= (5 - 12x + x^2) * (x - 3)^2 : (4x^2 - 12x + 5) = (x - 3)^2
Четырёхзначным, чётным, 4036
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1)a) 6x=18
x=18:6
x=3
б)-3x=15
x=15:(-3)
x=-5
в)7x=-63
x=-63:7
x=-9
г)5x-3=12
5x=12+3
x=15:5
x=3
д)-4x+1=13
-4x=12
x=12:(-4)
x=-3
е)-x+9=16
-x=16-9
-x=7
x=-7