Final answer:
a) 8. To solve for x, we substitute the given value of x into the equation and simplify the expression. The answer is a) 8.
Step-by-step explanation:
To solve for x in the equation 7² + 2² - 5 - 4 + 3x, we substitute the value of x with 32 divided by 4 - 2². First, we simplify 32 divided by 4 - 2² to get 8 - 2². Then, we calculate 7² + 2² - 5 - 4 + 3(8 - 2²). Simplifying further, we have 49 + 4 - 5 - 4 + 3(8 - 4). Continuing to simplify, we get 49 + 4 - 5 - 4 + 3(4). Finally, evaluating the expression, we have 49 + 4 - 5 - 4 + 12, which equals to 56. Therefore, the answer is a) 8.