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b)2ab(do potęgi 2)
c)6x+3xy+2y+2a+d+k+r+t+w
d)mx+my+kx+gx+ky+gy:)
y(m-1)-(m-1)
(y-1)(m-1)
b) a+ab-b-1
a(1+b)-(1+b)=(a-1)(1+b)
c) 3x²+3x+3xy+2y=3x(x+1+y)+2y=(3x+2y)(x+1+y)
d) mx+my+kx+qx+ky+qy=m(x+y)+k(x+y)+q(x+y)=
(m+k+q)(x+y)
proszę:)