Question

a) 8x*2+4x*2-6x*2
b)20xy-18xy-15xy
c)4ab + 1,5ab- 2,3ab
d) 13bc-12bc+9bc-3bc
me ajudemmmm​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 8x² + 4x² - 6x² =

12x² - 6x² =

6x².

b) 20xy - 18xy - 15xy =

20xy - 33xy =

- 13xy.

c) 4ab + 1,5ab - 2,3ab  =

5,5ab - 2,3ab  =

3,2ab.

d) 13bc - 12bc + 9bc - 3bc =

22bc - 15bc =

7bc.