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
Pleas help me!!
Sphinxa [80]
1) Answer: The part of the quadratic formula tells us whether the quadratic equation can be solved by factoring is b^2-4ac

2) 4x^2+6x+2=0
ax^2+bx+c=0; a=4, b=6, c=2
b^2-4ac=(6)^2-4(4)(2)=36-32
b^2-4ac=4

Answer: b^2-4ac=4
7 0
3 years ago
Compare the pair of fractions. ( &lt;,&gt;,=) <br> 3/4__5/6
Andrew [12]

Answer:

3/4 is less < than 5/6

Step-by-step explanation:

4 0
3 years ago
WORLD PEACE EVERY WHERE
emmasim [6.3K]

Answer:

yes Amen and we also need Jesus

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Lisa set her watch 20 seconds behind, and it falls behind another 1 second every day. How many days has it been since Lisa last
DENIUS [597]

Answer:

26

Step-by-step explanation:

46-20

26

7 0
3 years ago
Which ordered pair satisfies the system of equations shown below? (10 POINTS + BRAINLIEST ANSWER)
nasty-shy [4]
The answer would be D.
 you would start by choosing one of the variables to eliminate, i chose to eliminate X first. in order to eliminate X, i had to multiply the second equation by -2. X then cancelled out, and i solved for the Y the same way you would a 1 step equation. Y=-4
I then took the first original equations, plugged Y in, and solved for X. X=3.

Hope this helps!
7 0
3 years ago
Other questions:
  • What is the length of VW?
    14·1 answer
  • Simplify this expression 2wz-w-6wz+4w-7
    14·2 answers
  • (j + 1)(2) simplify the expression
    5·1 answer
  • What property justifies that 6x+9/3 =2x + 3? (see the pic of how the fraction is)
    14·1 answer
  • X+16&gt;51 (multiple response) A. 80 B. 35 C. 16 D. 38 E. 55 F. 34
    13·1 answer
  • A weather reporter in your area said that the speed of sound in air today is about one thousand one hundred feet per second. Wha
    8·1 answer
  • Write an<br> i explicit formula for an, the nth term of the sequence 200, 40, 8, ....
    6·1 answer
  • 1 + 14 = <br> 1 - 14 =<br> 1 + 12 =<br> 1 - 12 =<br> 1 + 13 = <br> 1 - 13 +
    12·2 answers
  • 4 less than four times a number is equal to three times the same number plus 1
    15·1 answer
  • Help me, please?????
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!