Simplifying Polynomial Expressions
This article will guide you through the process of simplifying the polynomial expression:
(3x^5 - 9) - (11 + 13x^2 - x^4) - (10x^2 + x^4)
Understanding the Steps
The key to simplifying this expression lies in understanding the following:
- Distributing the Negative Sign: Remember that a minus sign in front of parentheses means we multiply each term inside the parentheses by -1.
- Combining Like Terms: We can only add or subtract terms that have the same variable and exponent.
The Simplification Process
-
Distribute the negative signs:
(3x^5 - 9) - (11 + 13x^2 - x^4) - (10x^2 + x^4)
= 3x^5 - 9 - 11 - 13x^2 + x^4 - 10x^2 - x^4 -
Combine like terms:
= 3x^5 + (x^4 - x^4) + (-13x^2 - 10x^2) + (-9 - 11)
-
Simplify:
= 3x^5 - 23x^2 - 20
Final Answer
Therefore, the simplified form of the expression (3x^5 - 9) - (11 + 13x^2 - x^4) - (10x^2 + x^4) is 3x^5 - 23x^2 - 20.