Final answer:
The values of x that are solutions to the equation are x = -4 and x = 4.
Step-by-step explanation:
To find the values of x that are solutions to the equation, we can start by simplifying both sides of the equation. Combining like terms, we have: 15x² - 6x² = 88 + 56. Simplifying further, we get 9x² = 144. To solve for x, we divide both sides of the equation by 9: x² = 16. Taking the square root of both sides, we have x = ±4. So, the correct values of x that are solutions to the equation are x = -4 and x = 4.
Learn more about Solutions to Equations