11-12-2019
Mathematics

contestada

5) Is 3 a zero (or root) of f(x) = x3 - 9x2 + 11x + 21?

Respuesta :

MathPhys MathPhys

11-12-2019

Answer:

Yes

Step-by-step explanation:

f(x) = x³ − 9x² + 11x + 21

f(3) = (3)³ − 9(3)² + 11(3) + 21

f(3) = 27 − 81 + 33 + 21

f(3) = 0

Answer Link

Otras preguntas

What is seventy percent of three hundred

Which nation below was upset with the terms of the Treaty of Versailles (which ended WWI) mainly because they were excluded from having any input in developing

Write an opening statement that describes a policy approach for a presidential candidate.

When Marty's sister was born, she weighed 8¼ pounds. At her three-month checkup, she weighed 9 5/8 pounds. How many ounces had she gained? Which computation wil

Where is Tierra del Fuego? A. In the southern most province B. Brazil C. North of Argentina

what does the 0.4 in the highlighted cell mean

Hey guys, I need a proof on whether water is wet or not. I need a detailed scientific proof. THIS IS NOT A JOKE!

at a bake sale,6 brownies were sold for every 2oatmesl raisin cookie.How many brownies were sold if 23 oatmeal rasin cookies were sold? using a diagram to expla

The area in square feet of a rectangular field is x^2-160x+6300. The width, in feet, is x-70. What is the length in feet? Would really appreciate if you explain

What are some of the arguments for and against using cloning to increase populations of endangered lions?