Question

Escreva da forma mais simples possivel as expressoes
-8x*3+13x*3
ab - 5/4ab
2/5 xy - 1/2 xy
-1/4 my - 1/2 my

Answer 1

= - 8x*3 + 13x*3
= 13x^3 - 8x^3
= 5x^3

= ab - 5/4ab
= ( 4ab - 5ab)/4
= - ab/4

= 2/5 xy - 1/2 xy
= (2.2 xy - 5.1 xy)/10
= (4xy - 5xy)/10
= - xy/10

= - 1/4 my - 1/2 my
= (- 1 my - 2.1 my)/4
= (- 1 my - 2 my)/4
= - 3 my/4