Question

efetuar as operações:
a- 6abc+ 2abc- 3abc + 7abc
b- 3/4xy²+ 5/2xy²- 1/8xy²
c- 0,8y³z- 1,2y³z+ 0,3y³z
d- 5ab- 3ab+ 2ab- 7ab

Answer 1

a)12abc
b)6xy²+20xy²-xy²= 25xy²
c)-0,4y³z+0,3y³z= -0,1y³z
d)2ab-5ab= -3ab