1. 2x(x-1)=4(x+1)²-2x²
2. 6-(2x+4)+√6(4-x)
3. 2x+6=3-√3x
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1. 2x(x-1)=4(x+1)²-2x²
2x²-2x=4(x²+2x+1)-2x²
2x²-2x=4x²+8x+4-2x²
-2x-8x=4
-10x = 4
x= - 4/10 = -0,4
2. 6-(2x+4)=√6(4-x)
6-2x-4 = 4√6 - √6x
-2x+√6x = 4√6 - 6 +4
x(-2+√6) = 4√6 - 2
x= (4√6-2) / (√6-2) * (√6+2) / (√6+2) = 24+8√6-2√6-4 / 6-4 = 20+6√6 / 2 =
=10+3√6
3. 2x+6=3-√3x
2x+√3x=3-6
x(2+√3)=-3
x= -3/(2+√3) * (2-√3)/(2-√3) = -6+3√3 / 4-3 = -6+3√3