1) f(x)=|x-5|-1 = 0, |x-5|=1, x1=4, x2 = 6
ответ: 4; 6.
2) f(x)=|x²+3x|-4 =0 , |x^2 +3x| = 4
x^2 + 3x -4 = 0 x^2 + 3x +4 = 0 нет решений
х1 = -4; х2 = 1
ответ: -4; 1.
3) f(x)=(x-3)³-(x²- 9) = 0, (х-3)[x^2 - 6x + 9 -x - 3] = 0
(x-3)(x^2 -7x+6) = 0, x1 = 3; х2 = 1; х3 = 6.
ответ: 1; 3; 6.
4)f(x)=|x+4|-8 = 0, |x+4| = 8, x1 = 4, x2 = -12
ответ: -12; 4.
5) f(x)=|x²+11x)-12 = 0, |x^2 +11x| = 12
x^2+11x -12 = 0 x^2+11x+12=0
x1 = -12, x2 = 1 D = 121-48 = 73
x3 = (кор73 -11)/2, х4 = (-кор73 -11)/2
6) f(x)=x³-3x²-4x+12 = 0
x^2(x-3) -4(x-3) = (x-3)(x-2)(x+2) = 0
x1=-2; х2=2; х3=3.
ответ: -2; 2; 3.
1) f(x)=|x-5|-1 = 0, |x-5|=1, x1=4, x2 = 6
ответ: 4; 6.
2) f(x)=|x²+3x|-4 =0 , |x^2 +3x| = 4
x^2 + 3x -4 = 0 x^2 + 3x +4 = 0 нет решений
х1 = -4; х2 = 1
ответ: -4; 1.
3) f(x)=(x-3)³-(x²- 9) = 0, (х-3)[x^2 - 6x + 9 -x - 3] = 0
(x-3)(x^2 -7x+6) = 0, x1 = 3; х2 = 1; х3 = 6.
ответ: 1; 3; 6.
4)f(x)=|x+4|-8 = 0, |x+4| = 8, x1 = 4, x2 = -12
ответ: -12; 4.
5) f(x)=|x²+11x)-12 = 0, |x^2 +11x| = 12
x^2+11x -12 = 0 x^2+11x+12=0
x1 = -12, x2 = 1 D = 121-48 = 73
x3 = (кор73 -11)/2, х4 = (-кор73 -11)/2
6) f(x)=x³-3x²-4x+12 = 0
x^2(x-3) -4(x-3) = (x-3)(x-2)(x+2) = 0
x1=-2; х2=2; х3=3.
ответ: -2; 2; 3.