Is 2 a Root of the Polynomial 4x^3 - 3x^2 - kx - 4k^2 = 0?

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SUMMARY

The polynomial equation 4x^3 - 3x^2 - kx - 4k^2 = 0 has 2 as a root, which leads to the conclusion that substituting x = 2 must satisfy the equation. By substituting 2 into the polynomial, the equation simplifies to 32 - 12 - 2k - 4k^2 = 0. This results in the quadratic equation 4k^2 + 2k - 20 = 0, which can be solved using the quadratic formula to find the values of k.

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NneO
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Homework Statement


if 2 is a root of 4x^3-3x^2-kx-4k^2= 0 find th value of k


Homework Equations





The Attempt at a Solution

 
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NneO said:

Homework Statement


if 2 is a root of 4x^3-3x^2-kx-4k^2= 0 find th value of k


Homework Equations





The Attempt at a Solution


What have you tried so far?

RGV
 
Do you not understand that the only mathematics involved is integer arithmetic?
 

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