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\(\displaystyle (x - A)(x^{2} + Bx + C)\)

I am being asked to find the value of A, B and C.

I am sure this is simpler than I think but it's perhaps the Bx that is confusing me as I haven't practiced a lot of these examples yet.

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- Thread starter
- #1

\(\displaystyle (x - A)(x^{2} + Bx + C)\)

I am being asked to find the value of A, B and C.

I am sure this is simpler than I think but it's perhaps the Bx that is confusing me as I haven't practiced a lot of these examples yet.

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Alright, so I obtained \(\displaystyle (x -3)(x^{2} + 3x + C)\)Hint: Write the polynomial as the difference of cubes $x^3-3^3$ then use the difference of cubes formula $a^3-b^3=(a-b)(a^2+ab+b^2)$.

I still can't find C

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