1. Pszekształć iloczyny na sumy.
a) ( + 1) (2 - 2)
b) ( + ) ( + )
c) (x + 1) (x - 2 )
d) (x + ) (2 + x)
2. Zapisz w postaci sumy algebraicznej.
a)
b)
c)
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2.
a. x²+2*3*x+3²=x²+6x+9
b. a²-2*2*a+2²=a²-4a+4
c.(2x)²+2*2x*5+5²=4x²+20x+25