SOLUTION: Tutor could you help me please...thank you 10square root3 -7square root3+5square root3= Would the answer be:

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Question 89080: Tutor could you help me please...thank you
10square root3 -7square root3+5square root3=
Would the answer be:
-2square root 3
-3square root 3
8square root 3
or
12square root 3
Answer by bucky(2189) About Me  (Show Source):
You can put this solution on YOUR website!
Given:
.
10%2Asqrt%283%29+-+7%2Asqrt%283%29+%2B+5%2Asqrt%283%29
.
To combine these terms just combine the multipliers of sqrt%283%29 and multiply the
result of this combination by sqrt%283%29 to give you 8%2Asqrt%283%29.
.
Another way of looking at the problem is that since every one of the terms has sqrt%283%29
as a factor it can be factored out. The result is:
.
sqrt%283%29%2A%2810+-+7+%2B+5%29
.
Then combine the terms inside the parentheses. 10 - 7 + 5 = +8. So you can replace the three
terms in the parentheses by +8 and the problem becomes:
.
sqrt%283%29%2A%288%29
.
and by convention we normally write this in the reverse order: 8%2Asqrt%283%29.
.
Therefore, the third answer in your list of answers is the correct one ...
.
Hope this helps you to understand the problem.