Your friend asks you to check their work. You see the expression (8-10)^2 - 30/5 * 6 +2 simplified in the following way:
Original Problem: (8-10)^2 - 30/5 * 6 +2
Step 1: (64-100) - 30/5 * 6 +2
Step 2: -36-30/5 *6 +2
Step 3: -36-6 * 6 + 2
Step 4: -36 - 36 + 2
Step 5: -72 + 2
Step 6: -70
Part A: Explain, using complete sentences, which step contains the error and what specifically the error was.
Part B: Show how this expression should be simplified using a similar format - showing work for each step like was done above. Full credit will only be given if work shows Step 1, Step 2, Step 3, etc. as seen above.
Part A: The error occurs in Step 2. Specifically, the error is in the calculation of the multiplication operation.
Part B:
Original Problem: (8-10)^2 - 30/5 * 6 +2
Step 1: (-2)^2 - 30/5 * 6 + 2
Step 2: 4 - 6 * 6 + 2
Step 3: 4 - 36 + 2
Step 4: -32 + 2
Step 5: -30