SOLUTION: Give the exact and approximate solutions to three decimal places. x^2-7x+7=0

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Question 299575: Give the exact and approximate solutions to three decimal places.
x^2-7x+7=0

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Start with the given equation.


Notice that the quadratic is in the form of where , , and


Let's use the quadratic formula to solve for "x":


Start with the quadratic formula


Plug in , , and


Negate to get .


Square to get .


Multiply to get


Subtract from to get


Multiply and to get .


or Break up the expression.


So the solutions are or

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