Question

simplify the expression 7.8n²+0.5+9n-.0.4-7n+n²​

Answer 1

The final answer for this question would be.....

8.8n^2+16n+0.1

Hope this helps!!!!

Answer 2

Answer:

8.8n² + 2n + 0.1

Step-by-step explanation:

For this expression, all you have to do is combine like terms, which means to combine terms with n² with each other, terms with n with each other, and so on.

7.8n² + 0.5 + 9n - 0.4 - 7n + n²

Now, put the n² terms, n terms, and constants (no n) with each other.

7.8n² + n² + 9n - 7n + 0.5 - 0.4

Now you can add and subtract to combine like terms.

7.8n² + n² + 9n - 7n + 0.5 - 0.4

8.8n² + 2n + 0.1

And that's your answer.