Final answer:
To find the sum of the given expressions, distribute and combine like terms.
Step-by-step explanation:
To find the sum of (2x-6) and (4x+12), you need to combine like terms. First, distribute the 4x to both terms inside the first bracket: 4x * 2x = 8x^2 and 4x * -6 = -24x. Then, distribute the 4x to both terms inside the second bracket: 4x * 12 = 48x. Now, combine like terms: (8x^2 - 24x) + (48x + 12). This simplifies to 8x^2 + 24x + 12.
Learn more about Combining like terms in algebraic expressions