1.Wzory skróconego mnożenia
A) (2a - c ) ( 2a + c ) =
b ) ( x + y) do potęgi 2 =
C ) (3x - 1) do potęgi 2 =
D ) (x + 5) (x - 5 ) =
E ) (1 - 4y) do potęgi 2 =
F ) ( 3x + 2y ) do potęgi 2 =
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A) (2a - c ) ( 2a + c ) =4a² -c²
b ) ( x + y) do potęgi 2 =x² +y² +2xy
C ) (3x - 1) do potęgi 2 =9x² +1-6x
D ) (x + 5) (x - 5 ) =x² -25
E ) (1 - 4y) do potęgi 2 =1+16y² -8y
F ) ( 3x + 2y ) do potęgi 2 =9x² +4y² +12xy
A) (2a - c ) ( 2a + c ) = 4a² -c²
b ) ( x + y) ² = x² +y² +2xy
C ) (3x - 1)² = 9x² +1-6x
D ) (x + 5) (x - 5 ) = x² -25
E ) (1 - 4y) ² = 1+16y² -8y
F ) ( 3x + 2y ) ²= 9x² +4y² +12xy