Rzowiąż równanie: x^2=(1-x)(1+x)
x^2=(1-x)(1+x)
x²=1+x-x-x²
x²=1-x²
x²+x²=1
2x²=1
x²=1/2
x=√(1/2)
x=√2/2, x=-√2/2
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x^2=(1-x)(1+x)
x²=1+x-x-x²
x²=1-x²
x²+x²=1
2x²=1
x²=1/2
x=√(1/2)
x=√2/2, x=-√2/2
licze na naj