Final answer:
The value of the given expression with a = -5 and b = 3 is 64.
Step-by-step explanation:
Let's evaluate the given expression 4√²-6² by substituting the values of a = -5 and b = 3. We have 4(-5)² - 6² = 4(25) - 36 = 100 - 36 = 64.
Learn more about Evaluating expressions with given values