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solve equation

0 votes

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

asked Jun 17, 2014 in ALGEBRA 2 by anonymous

1 Answer

0 votes

 

The equation  image

For simplicity denote image ----> (1)

image

image

  • Now solve the equation image

image

image

image

image

image

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

image

  • Solve the above two equations in factorisation method.

image

image

image

image

image

image

image

Solve the equation image

image

image

image

image

image

image

image

Solution x  = 5 , 2 , -1.

answered Jun 17, 2014 by david Expert

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