SOLUTION: Is the equation √[ (3x +7)2] = 3x + 7 sometimes true, always true, or never true?
Help? Can someone explain this to me?
Thank you.
Cynthia
Algebra.Com
Question 286513: Is the equation √[ (3x +7)2] = 3x + 7 sometimes true, always true, or never true?
Help? Can someone explain this to me?
Thank you.
Cynthia
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
is only true if since for all values of 'x'. So the answer is 'sometimes true'.
Here are some examples: If x=0, then ---> ----> which is true.
However, If x=-10, then ---> ----> which is false.
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