SOLUTION: Find all the zeroes for f(x)=x^3+4x^2-5x and write the function f(x) as a product of linear fsctors. I know how to find the real zeroes using the Rational Zeroes Test but I think I

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Question 671883: Find all the zeroes for f(x)=x^3+4x^2-5x and write the function f(x) as a product of linear fsctors. I know how to find the real zeroes using the Rational Zeroes Test but I think I need to find the complex zeroes as well. I don't know how to find the complex zeroes without being given one complex zero because of the complex conjugate pair.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

f(x)=x^3+4x^2-5x = x(x^2 + 4x - 5) = x(x+5)(x-1) = 0 |||  zeroes are: -5,0,1 

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