Final answer to the problem
Step-by-step Solution
Learn how to solve limits by direct substitution problems step by step online. Expand the expression (2x+6)^2. Expand the expression \left(2x+6\right)^2 using the square of a binomial. Take the square of the first term: 2x. Twice (2) the product of the two terms: 2x and 6. Take the square of the second term: 6.