Respuesta :

The first expression 6d^2+5cd-3dc+8 can be simplified by combining like terms

Further explanation:

We will see each expression one by one to check whether it can be simplified or not

So

[tex]6d^2+5cd-3dc+8\\[/tex]

We can see that there are two terms that contain c and d's product.

3dc can also be written as 3cd as multiplication is always commutative and order doesn't matter.

So,

[tex]6d^2+5cd-3dc+8\\=6d^2+5cd-3cd+8\\=6d^2+2cd+8[/tex]

Second expression is:

[tex]12c^2-8d^2c+3dc+4[/tex]

We can see that all the terms are different so no terms can be combined to simplify the expression

Third expression:

[tex]7d^2-3c^2+6d−c\\[/tex]

There are no alike terms which can be combined so the expression cannot be simplified

Fourth expression:

[tex]16c^2+8cd+7c-8d[/tex]

No alike terms which means the expression cannot be further simplified

The first expression 6d^2+5cd-3dc+8 can be simplified by combining like terms

Keywords: Expressions, simplification

Learn more about expressions at:

  • brainly.com/question/5429379
  • brainly.com/question/5792503

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Answer:

6d2+5cd−3dc+8

Step-by-step explanation:

5cd is the same as 5dc, and so it can be combined with 3dc, and vice versa.