Answer:
3d²
Explanation:
Hello!
To simplify, we combine the like terms by adding them.
Like terms
Like terms are terms with the same variable and degree. A degree is a power to which the term is raised. Like terms can have numerical coefficients. For example, a coefficient of 4 to x² would mean 4 times x².
We can see that the variable d² is common throughout the three terms, meaning they are like terms. We can simply add and subtract them.
Simplify
- 4d² - 6d² + 5d²
- -2d² + 5d²
The simplified form is 3d².