Answer:
The unknown number is 
Step-by-step explanation:
Let's make the unknown number x.
The sum of 5 TIMES a number (x) & 8 is 9.
Let's write it mathematically.
5x + 8 =9
We are trying to find the unknown number, so let's remove all the numbers from the left side to find x. Minus 8.
5x=1
5x is basically 5 times x, so to find x, we need to divide and from there we can remove 5.
x= 
Given:
The polynomial is:

To find:
The simplified form of the given polynomial in standard form.
Solution:
We have,

Combining the like terms, we get


Now, rewrite this polynomial in standard form.

Therefore, the required polynomial in standard form is
.
Step-by-step explanation:
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Step-by-step explanation:
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