Zapisz w jak najprostszej postaci :
a)x(5x-2)-2x(x+1)
b)(a+√₂)(a-√₂)-2(a²-1)
a)
5x²-2x-2x²-2x=3x²-4x
b)
a²-2-2a²+2=-a²
a²-2-2a²+2= -a²
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a)
5x²-2x-2x²-2x=3x²-4x
b)
a²-2-2a²+2=-a²
a)
5x²-2x-2x²-2x=3x²-4x
b)
a²-2-2a²+2= -a²