Rozwiąż: a) 35ab do 2 + 7ab = b) 2ba do 2 b do 2 - 13a = c) 1/2xy do 2 - 1/4 xy = d) 1/3 ab do 3 - 1/9 a do 2 b do 2= Wyjaśnienie: do 2 lub do 3: do potęgi 2 lub potęgi 3 1/2 ,1/3 ,1/9: jedna druga, jedna trzecia, jedna dziewiąta

a) 35ab do 2 + 7ab = 7ab(5ab+1) b) 2ba do 2 b do 2 - 13a = a(2b²-13) c) 1/2xy do 2 - 1/4 xy = 1/4xy(1/4xy-1) d) 1/3 ab do 3 - 1/9 a do 2 b do 2= ab²(1/3ab-1/9)

a) 35ab do 2 + 7ab = 7ab(5ab+1) b) 2ba do 2 b do 2 - 13a = a(2b²-13) c) 1/2xy do 2 - 1/4 xy = 1/4xy(1/4xy-1) d) 1/3 ab do 3 - 1/9 a do 2 b do 2= ab²(1/3ab-1/9)

a) 35ab do 2 + 7ab=7ab(5ab+1) b) 2ba do 2 b do 2 - 13a=a(2b²-13) c) 1/2xy do 2 - 1/4 xy=1/4xy(1/4xy-1) d) 1/3 ab do 3 - 1/9 a do 2 b do 2=ab²(1/3ab-1/9)