kylieswaziek
kylieswaziek kylieswaziek
  • 21-11-2018
  • Mathematics
contestada

Four is a zero of the equation x^3+3x^2-18x-40=0.
Which factored form is equivalent to the equation?

I appreciate any help! Thanks :)

Four is a zero of the equation x33x218x400 Which factored form is equivalent to the equation I appreciate any help Thanks class=

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 21-11-2018

If 4 is a root, then a factor must be x - 4.

Only choices A and D have x - 4 as a factor.

Now look at the constant term of each binomial in the factorizations of choices A and D.

A.: -4, 4, 5

Their product is -80.

The constant term of the original polynomial is -40, so this factorization cannot be correct.

D.: -4, 2, 5

Their product is -40.

This is the correct factorization.

Answer: D.

Answer Link

Otras preguntas

why might someone want to flee to afghanistan to seek a home in a new country
Which is the most appropriate unit of measurements to use to measure the thickness of a quarter? Elaborate. A.) meters B.) Kilometers C.) Centimeters D.) Millim
how will you discribe the sequence of oxygen ,carbon dioxide, and blood flow in your own words
Rationalize the denominator and simplify-[tex] \frac{ \sqrt{6} }{ \sqrt{3} - \sqrt{2} } [/tex]
Please solve equations by completing square
solve for r F= k (m1m2/r^2)
Which is the most appropriate unit of measurements to use to measure the thickness of a quarter? Elaborate. A.) meters B.) Kilometers C.) Centimeters D.) Millim
How and why did the antislavery movement become more radical over the period 1815 to 1860?
a) six pens and five pencils cost $2.50 while three pens and two pencils cost $1.15 . what will be the cost of a pen and 4 pencils . please help me
what is 12.2billion divided by 3.8%