(40 + 3)² is equal to
1. (40)² + (3)² - 2(40)(3)
2. (40)² - (3)² + 80 × 3
3. 1609 - 240
4. (40)² + (3)² + 2(40)(3)
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Answer:
4. (40)² + (3)² + 2(40)(3)
Step-by-step explanation:
(40 + 3)² is equal to = (40)² + (3)² + 2(40)(3)
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4 part is the answer
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