Question

Efetue as operações com os monomios:

a) 2xy + 6xy - 2xy + xy - 4xy

b) xy2 - xy + 5xy2 + 4xy

c) 3x - x + 4x - 2x

Answer 1

A) 2xy + 6xy - 2xy + xy - 4xy
>>8xy -2xy + xy - 4xy
>>6xy + xy - 4xy
>>7xy - 4xy
>>3xy

B) xy^2 -xy + 5xy^2 + 4xy
>>xy^2+5xy^2-xy+4xy
>>6xy^2+3xy

c) 3x - x + 4x - 2x
>>2x+4x-2x
>>6x-2x
>>4x