Rozłóź na czynniki wielomiany, stosując wzory skróconego mnożenia:
a)W(x)=(x^2-8x+16)-(4x^2+4x+1)
b)w(x)=(9x^2-6x+1)-(4x^2+20x+25)
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a)
(x-4)^2-(2x+1)^2
b)
(3x-1)^2-(2x+5)^2
a)W(x)=(x²-8x+16)-(4x²+4x+1)=
=(x-4)²-(2x+1)²
b)w(x)=(9x²-6x+1)-(4x²+20x+25)=
=(3x-1)²-(2x+5)²