Simplify the following expression: 4x² + 4x + 4 - 3(5x² - 3x - 9)

Question

Quizplus · Accepted Answer

In problems like these, we must be sure to only combine like terms. 4x² + 4x + 4 - 3(5x²- 3x - 9) Distribute the 3 (when you see coefficients, you should distribute them first). 4x² + 4x + 4 - 3(5x²- 3x - 9) 4x² + 4x + 4 - 3(5x²)- 3(3x) - 3(9) 4x² + 4x + 4 - 15x² + 9x + 27 We can combine terms with x² first. 4x² + 4x + 4 - 15x² + 9x + 27 -11x² + 4x + 4 + 9x + 27 Next, we can combine both terms with x. -11x² + 4x + 4 + 9x + 27 -11x² + 13x + 4 + 27 Finally, we can combine the numbers without variables. -11x² + 13x + 4 + 27 -11x² + 13x + 31

Simplify the Following Expression