jetblackcap jetblackcap

02-06-2019
Mathematics

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Please help me out :)

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jimrgrant1 jimrgrant1

02-06-2019

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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