Respuesta :
Answer: a^2 - 4
Step-by-step explanation: Since the square of a number is equal to that number to the power of 2, let a represent the number bring squared. You then subtract 4 from that, addressing the four less in the problem.
Answer: a^2 - 4
Step-by-step explanation: Since the square of a number is equal to that number to the power of 2, let a represent the number bring squared. You then subtract 4 from that, addressing the four less in the problem.