Asked by Anonymous

How do i find solutions to 20x^3-125x=0?

Answers

Answered by DonHo
Factor:
5x(4x^2-25)

roots:

5x=0
x= 0

4x^2-25 =0

x = -2.5 , 2.5

so possible roots:

0, -2.5,2.5
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