Final answer:
To simplify the expression 15(15x - 30) - x + 4, distribute 15 to both terms inside the parentheses, combine like terms, and simplify further to get 224x - 446.
Step-by-step explanation:
To simplify the expression 15(15x - 30) - x + 4, we can follow the order of operations (PEMDAS). Here are the step-by-step instructions:
- Simplify the expression within the parentheses: 15x - 30.
- Multiply 15 by the simplified expression: 15 * (15x - 30).
- Distribute the 15 to both terms within the parentheses: 15 * 15x - 15 * 30.
- Simplify the resulting expression: 225x - 450.
- Combine like terms: 225x - 450 - x + 4.
- Combine x and -x: 225x - x - 450 + 4.
- Simplify further: 224x - 446.
Therefore, the simplified expression is 224x - 446.