drinkinwater
12.05.2021 •
Mathematics
1. Evaluate (x + 4)2 if x = 2
2. Evaluate x2 +6xy + 9y2 if x = 2 and y = 3
3. Evaluate 2a +2b, if = 2 and b = 3
4. Evaluate a + b +2c if x = 1, b = -2 and c =5
5. Evaluate 3x3-2y2 if x = 2 and y = 3
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Ответ:
(20) 3.90's and (30) 4.30's
Step-by-step explanation: