Final answer:
To perform the indicated operation, remove the parentheses and combine like terms to simplify the expression: x² + 1
Step-by-step explanation:
To perform the indicated operation, remove the parentheses and combine like terms. In this case, we have:
(6x² + 8) + (-5x² - 7)
Combine the like terms by adding the coefficients of x² and the constant terms separately:
6x² + (-5x²) + 8 + (-7)
This simplifies to:
x² + 1
Learn more about Combining like terms in an algebraic expression