How do you add algebraic numbers?
Based on the provided reference, adding algebraic expressions involves combining "like terms". "Like terms" are terms that have the same variable and the same exponent for that variable.
Here's a breakdown:
- Identify Like Terms: Look for terms with identical variable parts (including exponents).
- Combine Coefficients: Add or subtract the numerical coefficients of the like terms. The variable part remains the same.
The video explains that when adding algebraic expressions, the variables and their exponents must match. The reference uses the example "2x + 3x". Because the variable, x, and its exponent (an invisible 1) match in both terms, they are like terms.
Therefore:
2x + 3x = (2 + 3)x = 5x
