por favor me ajudem
marque nas seguintes expressões quais são monômios
( ) -x
![( \: \: ) \: \frac{a + m}{7} ( \: \: ) \: \frac{a + m}{7}](https://tex.z-dn.net/?f=%28+%5C%3A++%5C%3A+%29+%5C%3A++%5Cfrac%7Ba+%2B+m%7D%7B7%7D+)
( ) 7a -4
![( \: \: ) \: 2 {x}^{2}y ( \: \: ) \: 2 {x}^{2}y](https://tex.z-dn.net/?f=%28+%5C%3A++%5C%3A+%29+%5C%3A+2+%7Bx%7D%5E%7B2%7Dy)
![( \: \: ) \: \frac{ - 2}{5} ( \: \: ) \: \frac{ - 2}{5}](https://tex.z-dn.net/?f=%28+%5C%3A++%5C%3A+%29+%5C%3A++%5Cfrac%7B+-+2%7D%7B5%7D+)
![( \: \: ) \: 2 {x}^{2} - y ( \: \: ) \: 2 {x}^{2} - y](https://tex.z-dn.net/?f=%28+%5C%3A++%5C%3A+%29+%5C%3A+2+%7Bx%7D%5E%7B2%7D+-+y)
( ) abc
![( \: \: ) \: \frac{am}{7} ( \: \: ) \: \frac{am}{7}](https://tex.z-dn.net/?f=%28+%5C%3A++%5C%3A+%29+%5C%3A++%5Cfrac%7Bam%7D%7B7%7D+)
Soluções para a tarefa
Respondido por
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(X) -x
![( \: \: ) \: \frac{a + m}{7} ( \: \: ) \: \frac{a + m}{7}](https://tex.z-dn.net/?f=%28+%5C%3A+%5C%3A+%29+%5C%3A+%5Cfrac%7Ba+%2B+m%7D%7B7%7D+)
(X) 7a -4
![( ) 2 {x}^{2}y ( ) 2 {x}^{2}y](https://tex.z-dn.net/?f=%28++%29+2+%7Bx%7D%5E%7B2%7Dy)
![(X) \frac{ - 2}{5} (X) \frac{ - 2}{5}](https://tex.z-dn.net/?f=%28X%29+%5Cfrac%7B+-+2%7D%7B5%7D+)
![( ) 2 {x}^{2} - y ( ) 2 {x}^{2} - y](https://tex.z-dn.net/?f=%28++%29+2+%7Bx%7D%5E%7B2%7D+-+y)
( ) abc
(X) 7a -4
( ) abc
Daniellitank:
e as outras não são
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