\( 1 \quad 1 \) ceccueración fecnologia 3) \( (4 * 5-10-512) * 3+12 a i z(16) \) \( 5-4+7-3 *(4-5+10-3) \) 3) \( 1012-5+10-20 / 5-5 * 4-31 \)

It seems like there are some mathematical expressions mixed with some text that may not be clear. I'll focus on the mathematical expressions and simplify or solve them as best as I can. 1. **Expression 1**: \( (4 * 5 - 10 - 512) * 3 + 12 \) - First, calculate \( 4 * 5 = 20 \). - Then, \( 20 - 10 = 10 \). - Next, \( 10 - 512 = -502 \). - Now, multiply by 3: \( -502 * 3 = -1506 \). - Finally, add 12: \( -1506 + 12 = -1494 \). So, the result of the first expression is \( -1494 \). 2. **Expression 2**: \( 5 - 4 + 7 - 3 * (4 - 5 + 10 - 3) \) - First, calculate the expression inside the parentheses: \( 4 - 5 + 10 - 3 = 6 \). - Now, calculate \( 3 * 6 = 18 \). - Then, \( 5 - 4 + 7 - 18 \). - Calculate \( 5 - 4 = 1 \). - Then, \( 1 + 7 = 8 \). - Finally, \( 8 - 18 = -10 \). So, the result of the second expression is \( -10 \). 3. **Expression 3**: \( 1012 - 5 + 10 - 20 / 5 - 5 * 4 - 31 \) - First, calculate \( 20 / 5 = 4 \). - Then, calculate \( 5 * 4 = 20 \). - Now, substitute these values into the expression: \( 1012 - 5 + 10 - 4 - 20 - 31 \). - Calculate step by step: - \( 1012 - 5 = 1007 \) - \( 1007 + 10 = 1017 \) - \( 1017 - 4 = 1013 \) - \( 1013 - 20 = 993 \) - \( 993 - 31 = 962 \) So, the result of the third expression is \( 962 \). ### Summary of Results: 1. \( (4 * 5 - 10 - 512) * 3 + 12 = -1494 \) 2. \( 5 - 4 + 7 - 3 * (4 - 5 + 10 - 3) = -10 \) 3. \( 1012 - 5 + 10 - 20 / 5 - 5 * 4 - 31 = 962 \)