February 2019 0 7 Report
Okej mam do rozwiązania 13 przykładów (*2 ) - do potęgi 2
Wzory :
1) (a+b)*2 = a*2 + 2ab + b*2
2) (a-b)*2 = a*2 - 2ab + b*2

Przykłady :
1) (x+y)*2 =
2) (2x +3)*2 =
3) (x+4)*2 =
4) (2x + 3y )*2 =
5) (3xy + 2z )*2=

6) (x-y)*2=
7) (2x+2)*2=
8) (x-3)*2=
9) (3x - 2y)*2=
10) (5-x)*2=

11) (x-1) (x+1) =
12) (x+2y) ( x-2y)=
13) (2a + b) (2a -b) =

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