The difference of the squares of two terms, divided by the difference of the same terms, is equal to the sum of the terms. In other words: $\frac{a^2-b^2}{a-b}=a+b$.
$3+x^2$
Final answer to the problem
$3+x^2$
Explore different ways to solve this problem
Solving a math problem using different methods is important because it enhances understanding, encourages critical thinking, allows for multiple solutions, and develops problem-solving strategies. Read more
The simplification of algebraic expressions consists in rewriting a long and complex expression in an equivalent, but much simpler expression. This simplification can be accomplished through the combined use of arithmetic and algebra rules.