SOLUTION: Solve the equation 3x^4-11x^2-20=0 81x^4=16 4x^3-8x^2-x+2=0

SOLUTION: Solve the equation 3x^4-11x^2-20=0 81x^4=16 4x^3-8x^2-x+2=0

Algebra.Com

Question 133285: Solve the equation
3x^4-11x^2-20=0
81x^4=16
4x^3-8x^2-x+2=0
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Given:

x = -4/3 and x = 5
Given:
Take the quad root of each side

x = 2/3
Given:

x = 1/2, -1/2 , 2
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