Wzory skroconego mnozenia
(4+x) do potegi 2 =
(3-4) do potegi 2 =
fast
(4+x) do potegi 2 =4²+2*4*x+x²=x²+8x+16
(3-4) do potegi 2 =(-1)²=1
1=(4+x) do potegi 2 = 4²+2*4*x+x²=x²+8x+16
2=(3-4) do potegi 2 =-1 do potęgi drugiej =1
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(4+x) do potegi 2 =4²+2*4*x+x²=x²+8x+16
(3-4) do potegi 2 =(-1)²=1
1=(4+x) do potegi 2 = 4²+2*4*x+x²=x²+8x+16
2=(3-4) do potegi 2 =-1 do potęgi drugiej =1