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
Inessa [10]
3 years ago
14

Coefficient of x^2 in the expansion of (x-3)^3

Mathematics
2 answers:
Mila [183]3 years ago
7 0

Answer:

-9

Step-by-step explanation:

(x-3)(x-3)(x-3)

(x^2-6x+9)(x-3)

x^3-9x^2+27x-27

Therefore, the coefficient of x^2 is -9.

Romashka [77]3 years ago
7 0

Answer:

-9

Step-by-step explanation:

=> (x-3)³

=> (x-3)(x-3)(x-3)

=> (x²-6x+9)(x-3)

=> x³-3x²-6x²+18x+9x-27

=> x^3-9x^2+27x-27

<u><em>So, the coefficient of x² is -9</em></u>

You might be interested in
What is the equation of the following line? Be sure to scroll down first to see all answer options.
Yuri [45]

Answer:

D: y=6x

Step-by-step explanation:

y=mx+b

b=0

y=mx

-3=m * (-1/2)

m=6

y=6x

3 0
3 years ago
Solve for each unknown
ehidna [41]
<span>6=2+u then u = 6 - 2 = 4
(-16)=(-9)-w then w = 16 - 9 = 7
8=r+4 then r = 8 - 4 = 4
v+(-3)=(-10) then v = -10 + 3 = -7
9=j+7 then j = 9-7 = 2
(-14)=r-6 then r = -14 +6 = -8
(-2)-k=4 then k = -2 -4 = -6
(-10)=n-8 then n = -10 + 8 = -2
(-9)=s+(-4) then s = -9 + 4 = -5
(-4)-s=0 then s = -4</span>
5 0
3 years ago
Robert is writing a paper for language arts class. He can write 2/3 of a page in 1/4 of an hour. At what rate is Robert writing?
Irina-Kira [14]

Answer:

A) 2 2/3 pages per hour

Step-by-step explanation:

You would multiply 1/4 times 4 to get 1 hour

then you would multiply 2/3 times 4 which is 2 2/3

6 0
3 years ago
The geometric mean of a number and four times the number is 22. What is the number?
Misha Larkins [42]
2 square root x • 4x= 22

2x=22

x=11

Answer is 11
8 0
2 years ago
Can anyone help me please!!!!!!!!!!!
Alja [10]

Answer:

a) 45

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is the difference between "x times x"  and "x plus x"?
    5·2 answers
  • The reference angle for an angle whose measure is 260° is _____.60°80°100°
    7·1 answer
  • Will mark u as BRAINLIEST plz help
    13·1 answer
  • Isi makes sandwiches to sell at a football game.
    14·1 answer
  • Let P(x) be the statement"x= x2", If the domain consists of the integers, what are these truth values? (a) P(0) (b) P(1) (c) P(2
    10·1 answer
  • Simplify the remaining expression completely x^6y^4/xy^2
    8·1 answer
  • Please help it asks: the graph below represents which of the following functions
    7·1 answer
  • Assume that AABC= APQR. Which of the following congruence statements
    8·1 answer
  • WILL MARK BRAINLIST
    12·1 answer
  • I need help asap<br> if u can
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!