To solve this equation, let's break it down step by step:
Step 1: Evaluate the expression inside the parentheses: 12 ÷ 2 = 6.
Step 2: Square the result: 6² = 36.
Step 3: Evaluate the denominator: 3² = 9.
Step 4: Evaluate the exponent: 3⁰ = 1.
Step 5: Perform the remaining operations from left to right:
51 + 36 ÷ 9 - 1
Step 6: Divide 36 by 9: 4.
Step 7: Perform the addition and subtraction:
51 + 4 - 1 = 54.
So, the final answer is 54.