ayshadhilna1
ayshadhilna1 ayshadhilna1
  • 11-06-2016
  • Mathematics
contestada

Find the values of a and b so that the polynomial p(x)=x4+x3+8x2-ax+b is exactly divisible by x2-1.

Respuesta :

caylus
caylus caylus
  • 11-06-2016
Hello,
a=1 and b=-9

......|x^4|x^3|x²|x___|1
      | 1 | 1  |8  |-a.....|b
x=1|__|_1_| 2 |10...|10-a
-----| 1..| 2  |10|10-a| 10-a+b        ==>10-a+b=0
x=-1|---|-1_|-1| -9__| 
___| 1_| 1_|9.|1-a_|                ===>a=1 and b=-10+1=-9

Answer Link

Otras preguntas

The Late Gothic artists adapted to a new style and trends that included: A. extreme realism O B. disguised symbols O C. all of these O D. vibrant oil paints
Which ratio is equivalent to 9:12? 129 18:24 12:19 10:12
Where can you get vitamin D from?
PLEASE HELP FAST URGENT!!!
What is the journey of an Electron? (from electricity) Say the journey of an electron with 5 sentences
A circle with radius of 1 cm sits inside a 3 cm x 4cm rectangle. What is the area of the shaded region? Round your final answer to the nearest hundredth. 3 cm 1
find x pls and explain pls
help?? The figure shown is composed of three identical rectangular prisms and a cube. Find the surface area.
What happens to the air in an air pump when being pumped into a tire? What happens to the air when allowed to escape from a tire?
The altitude of an equilateral triangle is 10√3. inches. What is the perimeter of the triangle?