Odpowiedź :
Zadanie 1
C²-9
C²+9
C²:9
7(k+2)
a²+b²
A+b+c
N+N+5
Zadanie 2
7a+2a²-a-4a²-6a+1=-3a²+1
8x²+11xy-9x-10x²+8y-8=-2x²-10x+8y+11xy
C²-9
C²+9
C²:9
7(k+2)
a²+b²
A+b+c
N+N+5
Zadanie 2
7a+2a²-a-4a²-6a+1=-3a²+1
8x²+11xy-9x-10x²+8y-8=-2x²-10x+8y+11xy
Zadanie 1
C²-9
C² + 9 C²: 9
7 (k + 2)
a² + b²
A + b + c
N + N + 5
Zadanie 2
7a + 2a²-a-4a²-6a + 1 = -3a² + 1 8x² + 11xy-9x-10x² + 8y-8--2x²-10x + 8y + 11xy