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ValentinkaMS [17]
2 years ago
6

Please help me out :)

Mathematics
1 answer:
Naily [24]2 years ago
5 0

Answer:

10d² + 8

Step-by-step explanation:

Given

(11 + 4d²) - (3 - 6d²) ← distribute parenthesis, second by - 1

= 11 + 4d² - 3 + 6d² ← collect like terms

= (4d² + 6d²) + (11 - 3)

= 10d² + 8

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