This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
Step 1: Apply the distributive property to the first term, multiplying 20I by each term inside the parenthesis. 20I(a+3b) = 20I · a + 20I · 3b = 20Ia + 60Ib Step 2: Apply the distributive property to the second term, multiplying 4 by each term inside the parenthesis. 4(2a-b) = 4 · 2a + 4 · (-b) = 8a - 4b Step 3: Combine the results from Step 1 and Step 2. 20Ia + 60Ib + 8a - 4b The expanded expression is: 20Ia + 60Ib + 8a - 4b Last free one today — make it count tomorrow, or type /upgrade for unlimited.