1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Whitepunk [10]
3 years ago
11

What is the completely factored form of x^4+8x^2-9

Mathematics
2 answers:
abruzzese [7]3 years ago
6 0

Answer:(x+1)(x-1)(x^2+9)

Step-by-step explanation:

denis-greek [22]3 years ago
3 0

Remark

You'll see it a whole lot easier if you make a substitution so that it looks like something you have already seen

Solution

let y = x^2

x^4 = x^2 * x^2

x^4 = y * y

x^4 = y^2

Now the expression becomes

y^2 + 8 y - 9  =  z

(y + 9)(y - 1) = z

Now put the x^2 back in.

(x^2 + 9) ( x^2 - 1) = z

x^2 - 1 becomes x + 1 and x - 1. At this level x^2 + 9 can't be factored.

Answer

(x^2 + 9) (x + 1)(x - 1)


You might be interested in
The value of y varies directly with the value of x. When y = 24, x = 4. What is the value of x when y = 48?
Bogdan [553]

Answer:

24/6=4

48/6= 8

so x=8

Step-by-step explanation:

3 0
3 years ago
Consider the function represented by the equation 6q = 3s - 9. Write the equation in function notation, where q is the independe
Llana [10]
Q = 3s - 9/6
q = 3(s - 3)/6
q = s - 3/2

6q + 9 = 3s
6q + 9/3 = s
3(2q + 3)/3 = s
2q + 3 = s
s = 2q + 3
5 0
3 years ago
mrs cindy had2/3 of a cake .she divided the cake equally among her 3 children. what fraction of the cake did each children get?
satela [25.4K]
Each kid would get 2/9 of the cake
3 0
3 years ago
What the answer is and how?
sladkih [1.3K]

Answer:

PerimeterFigure= pi*DIameter/2= 1.5*pi ft.

Step-by-step explanation:

The perimeter is the length of the figure, since we are dealing with an semi-circle, we can use the perimeter equation for a full circle and divide it by half.

Perimeter= 2pi*R= pi*Diameter.

Since Our figure is a semi circle, as we say earlier, we now will divide the above result by half.

PerimeterFigure= pi*DIameter/2= 1.5*pi ft.

3 0
2 years ago
Help me, and Marcus we need it
saw5 [17]
This is not middle school work
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the quotient for the equation above?
    9·2 answers
  • Choose the situation in which the use of exact number is most appropriate.
    12·1 answer
  • Triangle XYZ is isosceles. Angle Y measures a°. What expression represents the measure of angle X?
    13·1 answer
  • Angle relationships definitions please help​
    15·1 answer
  • I need urgent help plz
    5·2 answers
  • Find the 10 th term of the following geometric sequence. 1,5, 25, 125, ...​
    15·1 answer
  • Volume of the cylinder with diameter of 8mm and height of 8mm
    10·1 answer
  • I need help!il give brainlest
    6·1 answer
  • HI HELP ME W MATH PLSS!!
    9·1 answer
  • Evaluate each expression.<br> 8/7 + 4/7
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!