Respuesta :
Answer: 56a+46
1. Multiply each term in parentheses by 7
7*8+7*7
2. Calculate the problem
56a+7*7
3. Multiply the numbers
56a+46
1. Multiply each term in parentheses by 7
7*8+7*7
2. Calculate the problem
56a+7*7
3. Multiply the numbers
56a+46