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smcculleymcculley
03.03.2021 •
Mathematics
When (2x3 + 3x2 - 7x) is subtracted from (10x3 + 7x2 - 7) the result is
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Ответ:
8 3 + 4 2 + 7 − 7
Step-by-step explanation:
Distribute
(103+72−7)−1(23+32−7)
(103+72−7)−23−32+7
Eliminate redundant parentheses
(103+72−7)−23−32+7
103+72−7−23−32+7
Combine like terms
103+72−7−23−32+7
83+72−7−32+7
Combine like terms
83+72−7−32+7
83+42−7+7
Rearrange terms
83+42−7+7
83+42+7−7
Ответ:
11√45 - 4√5
= 11√(9(5)) - 4√5
= 33√5 - 4√5
= 29√5
29√5, third choice