What type of polynomial is x(x - 4)(x - 5)?

Question

anonymous · Answer

I think it is a cubic(3rd degree) binomial

anonymous · Answer

@perl

anonymous · Answer

@mathslover @sleepyjess

anonymous · Answer

@alekos

alekos · Answer

Cubic trinomial

solomonzelman · Answer

Yes, you are correct, it is a cubic polynomial (3rd degree polynomial).

anonymous · Answer

Should I just say polynomial or should I say trinomial? Is it a trinomial? I thought it was a binomial.

solomonzelman · Answer

trinomial =  is 3 terms.

how many terms will you have though?

anonymous · Answer

x(x - 4)(x - 5)
i know for sure that  (x - 4) is a term and that  (x - 5) is a term but I was't sure about that x in front

solomonzelman · Answer

$\large\color{black}{ \displaystyle  x(x - 4)(x - 5)=  }$
$\large\color{black}{ \displaystyle  x(x ^2 -4x-5x+20)=  }$
$\large\color{black}{ \displaystyle  x(x ^2 -9x+20)=  }$
$\large\color{black}{ \displaystyle  x ^3 -9x^2+20x }$

solomonzelman · Answer

yes, 3 terms :)

... any questions?

anonymous · Answer

ahh okay I see what you did there. Thank you very much :)

solomonzelman · Answer

polynomial with a degree of 3.   --> Cubic
3 terms in the expression.         --> Trinomial

solomonzelman · Answer

cubic trinomial... yw