Równania kwadratowe
1. (x+1)(x-1)+2x(2x+1)=6x^2
2.(3x-2)^2-x^2-2x=1
1.
x²-1 +4x²+2x-6x²=0 => -x²+2x-1=0 => Δ=0 -2/-2=1 1-rozw
2.
9x²-12x+4-x²-2x-1=0 => 8x²-14x+3=0 => Δ=196-96=100
x₁=14-10/16=1/4
x₂=14+10/16=3/2
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1.
x²-1 +4x²+2x-6x²=0 => -x²+2x-1=0 => Δ=0 -2/-2=1 1-rozw
2.
9x²-12x+4-x²-2x-1=0 => 8x²-14x+3=0 => Δ=196-96=100
x₁=14-10/16=1/4
x₂=14+10/16=3/2