AADJ4
21.09.2019 •
Mathematics
Don't get this is for a test i have tomorrow
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Ответ:
See Explanation
Step-by-step explanation:
Given
Required
Why dividing by
is not reliable
The reason is that, the given expression is a quadratic equation and as such, it will most likely have two solutions.
So, when the expression is divided by
, the solution will be 
, leaving out the other possible solution.
The right way is:
Subtract 6x from both sides
Factorize
Split
Solve for x in both cases: