Question

Efetue, simplificando o máximo possível:

a) 7ax - [2ax - (3a - 5x) + 2a] -a =

b) (4ab - 3a - 10) - [(5ab + 3a - 7) - (ab + 5)] =

c) 4/3 xy² - ( 3/2 xy² - 1/2 x² y ) + ( 1/3 x² y - 2/3 y² x )

d) (ab² - 3ab - 7) - (-2b²a + 4ba -1) - ( -ab² - 3ba + 6)

e) (4ab - 3a - 10) - [(5ab + 3a - 7) - (ab + 5)]

f) (xy + yz -xz) - (2xy + 2yz - 2zx) - (xz - xy - zy)

Answer 1

7ax - [2ax - (3a - 5x) + 2a] -a =4a×(-2×-(3c-5x)+2c)×a