Proszę o pomoc:)
1. x-(x-1)^2=(x+1)(1-x)
2. 5x-2(2(3x-1)-3x)=1-6x
3. 5(x+1)-6(2x+2)=2(5x+5)
4. 4x^2+4x+1=0
5. x^2-3=0
6. 3x^2-6x=0
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1. x-(x-1)^2=(x+1)(1-x)
x-(x²-2x+1)=x-x²+1-x
x-x²+2x-1=-x²+1
-x²+3x-1=-x²+1
3x-1=1
3x=2
x=2/3
2. 5x-2(2(3x-1)-3x)=1-6x
5x-2(6x-2-3x)=1-6x
5x-12x+4+6x=1-6x
-x+4=1-6x
-x+6x=1-4
5x=-3
x=-3/5
3. 5(x+1)-6(2x+2)=2(5x+5)
5x+5-12x-12=10x+10
-7x-7=10x+10
-7x-10x=10+7
-17x=17
x=-1
4. 4x^2+4x+1=0
Δ=16-4*4*1=16-16=0
x0=-4/(2*4)=-4/8=-1/2
5. x^2-3=0
x²=3
x₁=√3
x₂=-√3
6. 3x^2-6x=0
3x(x-2)=0
3x=0
x₁=0
x-2=0
x₂=2
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