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solve equation

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(x^2-4x)(x^2-4x-1)-20?

solving-equation

asked Jun 17, 2014 in ALGEBRA 2 by anonymous

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1 Answer

0 votes

The equation

For simplicity denote ----> (1)

Now solve the equation

From (1) substitute the "t " value again.

Solve the above two equations in factorisation method.

Solve the equation

Solution x = 5 , 2 , -1.

answered Jun 17, 2014 by david Expert

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