The above expression is not in its simplest form, and we need to simplify it, that is what asked in the question.
Given equation,

First of all, let's open the parentheses to combine the like terms for simplifying.

Arranging the like terms, x² with x², x with x and constant terms near to each other.

Simplying further,


So, the correct option is C
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Answer:
-13n + 101
Step-by-step explanation:
88, 75, 62, 49. = -13 -13 -13 = -13n + 101 (as 88+13 = 101)
Every triangle have three angles that add up to 180°. With this information, we can find out the missing angle.
The sum of three angles should add up to 180°.
148° + 11° + K = 180°
Where k is the missing angle.
Solve for K.
Combine like terms.
148° + 11° + K = 180°
159° + K = 180°
Subtract both sides by 159°.
159° + K = 180°
159° - 159° + K = 180° - 159°
K = 21°
So, the missing length is 21°.