SOLUTION: I have to problems i have been trying to solve please let me know if i am right or wrong. Use property 1 to simplify assume that all variables represent positive real numbers.
1
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Question 77916: I have to problems i have been trying to solve please let me know if i am right or wrong. Use property 1 to simplify assume that all variables represent positive real numbers.
1. sqrt
= sqrt
= sqrt*
= 5sqrt
2. sqrt
=9*x^2*8x
=3xsqrt=3xsqrt
Found 2 solutions by Earlsdon, bucky:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Simplify:
1)
=
2)
=
Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
.
1.
= <---- should be
= <--- should be
= <--- should be
The thing to do is to begin by looking at 50 and trying to find some factor or factors
that are squares. In this case 25 is a factor of 50 that has a "nice" square root of 5.
The comments after the <---- show you the way to simplify the problem step by step and the
answer to this problem is
.
2.
=<---- the biggest factor of 72 that is a square is 36. Use
This converts the problem to
.
= <---- should be
.
You had the right idea here. Your last step almost got the correct answer. Your last
step should have been:
.
=
.
and this is the correct answer.
.
Hope this gives you a little more insight to the problem. You seem to have the basic idea
of solving problems such as these and just needed a couple of minor suggestions to get you
back on track. Keep up the good work.
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