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Simplify (8j3 – 5j2 – 5) – (6j3 – 12j2 + 8j – 7) Answers A.2j3 – 17j2 + 8j – 12 B. 2j3 + 7j2 + 8j – 12 C.2j3 – 17j2 – 8j + 2 D.2j3 + 7j2 – 8j + 2
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Nov 12, 2017
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Simplify (8j3 – 5j2 – 5) – (6j3 – 12j2 + 8j – 7)
Answers
A.2j3 – 17j2 + 8j – 12
B. 2j3 + 7j2 + 8j – 12
C.2j3 – 17j2 – 8j + 2
D.2j3 + 7j2 – 8j + 2
Mathematics
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Markus Weber
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D.2j3 + 7j2 – 8j + 2
Anirudh Ramanathan
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Nov 15, 2017
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Anirudh Ramanathan
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(8j3 - 5j2 - 5) - (6j3 - 12j2 + 8j - 7) =
(8j3 - 6j3) - (5j2 - 12j2) - 8j - (5-7) =
2j3 - (-7j2) - 8j - (-2) =
2j3 + 7j2 - 8j + 2
The correct answer is
D. 2j3 + 7j2 - 8j + 2
Ecbrodie
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Nov 19, 2017
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Ecbrodie
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