Question

3 и 4 пж

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Answer 1

Ответ:

3)

1. 2x²-18=0

2x²=18

x²=9

x=3, x=-3

2. 36x³-12x²+x=0

x(36x²-12x+1)=0

x(6x-1)²=0

x=0, 6x-1=0

x=0, x=⅙

3. x³-2x²-4x+8=0

x²(x-2)-4x+8=0

x²(x-2)-4(x-2)=0

(x-2)(x²-4)=0

x-2=0, x²-4=0

x=2, x=-2, x=2

4)

1. -5