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what is  sqrt(7x-5)=-2sqrt(x-2)

whaat does it equal or what is x??

 
 Apr 29, 2021
 #1
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+1

sqrt  (7x - 5)   =  -2(sqrt (x - 2)      square  both sides

 

7x  - 5   =  (4) (x - 2)      simplify

 

7x  - 5  =   4x  -   8

 

7x - 4x  =  - 8  +  5

 

3x  =   -3

 

x  =  -1

 

However......tis  makes  both expressions under  the roots  negative......and  the  value of a negative  square root  is not  real....so....

 

No real solutions

 

cool cool cool

 
 Apr 29, 2021

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