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
taurus [48]
3 years ago
13

What is the completely factored form of d^4 - 81

Mathematics
2 answers:
White raven [17]3 years ago
5 0

Answer:

(d - 3)(d + 3)(d² + 9)

Step-by-step explanation:

d^{4} - 81 ← can be factored as a difference of squares

a² - b² = (a - b)(a + b), thus

d^{4} - 81

= (d²)² - 9²

= (d² - 9)(d² + 9)

Note that d² - 9 is also a difference of square, so

= (d - 3)(d + 3)(d² + 9) ← in factored form

Flauer [41]3 years ago
4 0

Answer:

Step-by-step explanation:

d^4-81

(d^2)^2-(9)^2

Using formula

(d^2+9)(d^2-9)

You might be interested in
Use properties of addition and subtraction to evaluate the expression. −28−47−12
MAXImum [283]
So you want the answer right ? if yes then the answer is -87
3 0
3 years ago
What is the length of this line?<br><br><br> Please help me! Thank you! ☺️
Semmy [17]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
Pick your answer is it <br> A <br> B <br> C or <br> D
aleksley [76]

Answer:

I belive its B,C

sorry if i'm wrong but hope it helps

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The function f(x)=x^2 is graphed on the coordinate grid.
Aleksandr [31]
<h3>Answer:</h3>
  • graphed below.
<h3>Explanation:</h3>
  • vertex: (0, 0)

other points:

<u>x    y</u>

-2  12

-1   3

0   0

1    3

2   12

7 0
2 years ago
Read 2 more answers
When Judy worked 4 hours and Ben worked 1 hour, their combined pay was $75. When Judy worked 2 hours and Ben worked 6 hours, the
arsen [322]

Answer:

$15

Step-by-step explanation:

let the hourly rate of pay for Ben  = B

let the hourly rate of pay for Judy  = J

Judy worked 4 hours and Ben worked 1 hour, their combined pay was $75;

              4J + B = 75 ----- i

Judy worked 2 hours and Ben worked 6 hours, their combined pay was $120

               2J + 6B  = 120 --- ii

Now, we should solve the expression;

   Multiply equation ii by 2 and equation i by 1;

 

            4J + B = 75 ----- i    x 1  ;    4J + B  = 75          -- iii

            2J + 6B  = 120 --- ii  x 2 ;   4J + 12B  = 240    ---iv

Now,

 equation iv - iii;

                   11B  = 165

                      B  = $15

So, solving for J;

          4J + B = 75

         4J + 15  = 75

          4J  = 75 - 15  = 60

          J  = $15

3 0
3 years ago
Other questions:
  • Evaluate the determinate of the matrix with work shown.
    13·1 answer
  • What six time twentyone
    12·1 answer
  • Line b passes through the point (-4,-7) and has a slope of -3/2 what is the equation of line b in standard form?
    9·1 answer
  • F(x) = 3(x - 5)(x + 2), then f(5) = and f(-2) =
    13·1 answer
  • Someone help me with this please?
    8·2 answers
  • 8x-5(4x+3)-(3-2x)=4-4(2x-3)-(9-3x)
    11·1 answer
  • We are going to approximate f by three polynomials, of degrees 1, 2, and 3. Let's call them p1, p2, and p3, respectively. p1 wil
    9·1 answer
  • A right rectangular prism has a length of 1/2 ft, width of 5 1/2 ft, and height of 10 1/2 ft. What is the volume of the prism?
    11·1 answer
  • G is the centroid of triangle ABC
    11·2 answers
  • In the equation above. K is a constant. If x=9, what value is k? A) 1 B) 7 C) 16 D) 79
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!