x(a-2b)+y(a-2b)= (4x+y)^= (x-1)(x+1)= x^+2xy+y^= 25a^-60ab+36b^= m^-16n^= 17^= 31*29=

1)xa-2bx+ya-2by 2)16x²+8xy+y² 3)x²-1 4)(x+y)² 5)(5a-6b)² 6)m²-16n² 7)289 8)899

x(a-2b)+y(a-2b)=xa-2xb+ya-2by (4x+y)^= = 16x²+8xy+y² (x-1)(x+1)=x²-1 x^+2xy+y^=(x+y)² 25a^-60ab+36b^=(5a-6b)² m^-16n^=m²-(4n)² 17^=189 31*29=899

zakłam że to ^ zanaczy "do kwadratu" x(a-2b)+y(a-2b)=ax-2bx+ay-2by (4x+y)^=16x²+8xy+y² (x-1)(x+1)=x²-1 x^+2xy+y^=(x+y)² 25a^-60ab+36b^=(5a-6b)² m^-16n^=m²-16n² 17^=289 31*29=899 _____________ Rozdaje zaproszenia na lockerz.com wystarczy podać mi e-maila