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4x²+1-6x=5+2x²-4x+1
4x²-2x²-6x+4x+1-1-5=0
2x²-2x-5=0
Δ=b²-4ac
Δ=4-4*2*(-5)
Δ=4+40
Δ=44
√Δ=2√11
x(1)=-b-√Δ / 2*a
x= 2-2√11/4
x=-2√11/2
x(2)=-b+√Δ / 2*a
x=2+2√11/4
x=2√11/2
4x² +1 -10x = 4x² +6
4x² - 4x² - 10x = 6 - 1
- 10x = 5 / : (- 10)
x = - 0,5
2x-2x-6x-5x-2x=1+1-1
-15x=2l:-15
x=0,13