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Simplify the expression: 2√ 20 − 3√ 7 − 2√ 5 + 4√ 63 . A. 2√ 20 − 3√ 7 − 2√ 5 + 4√ 63 B. 2√ 5 + 9√ 7 C. 2√ 20 − 4√ 7 − 2√ 5 D. 2√ 20 − 3√ 7 + 4√ 63
answered
Jan 29, 2018
Mathematics
college
0
votes
235k
views
If it takes 4 men 6 hours to repair a road, How long will it take 3 men to do the job if they work at the same rate ?
answered
Dec 25, 2017
Mathematics
middle-school
3
votes
45.0k
views
Convert 21/40 to a percent
answered
Nov 17, 2017
Mathematics
high-school
3
votes
26.0k
views
What is 72 divided by 4 is there a remainder If so how much
answered
Jun 29, 2017
Mathematics
middle-school
3
votes
94.8k
views
Locate the infintive and determine how it is used. She got up to leave. Noun Adjective Adverb
answered
Mar 27, 2016
English
high-school
4
votes
29.4k
views
What is 6=radical v-2
answered
Sep 29, 2015
Mathematics
middle-school
5
votes
174k
views
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