(2x-1)²=4(x-1)(x+5)
4x²-4x+1=4(x²+5x-x-5)
4x²-4x+1-4x²-16x+20=0
-20x+21=0
x=1,05
1,05:100%*20%= 0,21
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(2x-1)²=4(x-1)(x+5)
4x²-4x+1=4(x²+5x-x-5)
4x²-4x+1-4x²-16x+20=0
-20x+21=0
x=1,05
1,05:100%*20%= 0,21