menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Simplify (2√5 + 3√7)^2. PLEASE SHOW WORK HELP
Ask a Question
Questions
Unanswered
Tags
Ask a Question
Simplify (2√5 + 3√7)^2. PLEASE SHOW WORK HELP
asked
Apr 22, 2018
193k
views
1
vote
Simplify (2√5 + 3√7)^2. PLEASE SHOW WORK
HELP
Mathematics
high-school
Robin Vessey
asked
by
Robin Vessey
8.0k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
1
vote
First you want to find 2√5+3√7, which is ≈12.40938989. Then you would square that number and you would get ≈153.9929574 rounding to the nearest number you would get ≈154.
So the answer is ≈154.
Suzann
answered
Apr 23, 2018
by
Suzann
7.9k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
4
votes
(2√5 + 3√7)².
This binomial is of the form:
(a+b)² = a²+2ab+b²
if a =2√5 & b=3√7 then:
a² = (2√5)² = 4 x 5 = 20 & b² = (3√7)² = 9 x 7 = 63
& finally 2ab = 2x(2√5)x(3√7) = 12 √35
Answer 20+63+12√35 = 83 + √35
Cnk
answered
Apr 26, 2018
by
Cnk
9.3k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Oct 11, 2024
105k
views
A) 5√5-2√5 b) 8√7 + 3√7
Eric Fode
asked
Oct 11, 2024
by
Eric Fode
8.8k
points
Mathematics
high-school
1
answer
2
votes
105k
views
asked
Oct 8, 2024
2.6k
views
Find the Perimeter and area of the redangle Length = 3√7+3√5 width=2√7-2√5
Chmurli
asked
Oct 8, 2024
by
Chmurli
7.6k
points
Mathematics
college
2
answers
0
votes
2.6k
views
asked
Nov 28, 2017
185k
views
(2√5 + 3√7)^2 show your work and justify each step. Thank you!
EnToutCas
asked
Nov 28, 2017
by
EnToutCas
8.0k
points
Mathematics
high-school
2
answers
2
votes
185k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org