SOLUTION: (5x+4)to the 2nd power+7=0......use the square root to solve the equation

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Question 116135: (5x+4)to the 2nd power+7=0......use the square root to solve the equation
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Start with the given equation


Subtract 7 from both sides



Take the square root of both sides

Remember, taking the square root of a negative number does not result in a real number


Subtract 4 from both sides.



Divide both sides by 5 to isolate x