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
Nataly [62]
3 years ago
11

Expand and combine like terms. (2x^4+3x^3)(2x^4-3x^3)

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
7 0

Step-by-step explanation:

Use the form (a + b)(a - b) = a^2 - b^2:

(2x^4 + 3x^3)(2x^4 - 3x^3) = 4x^8 - 9x^6.

You might be interested in
9(m-3)+3m=7m+43 help me please
nikdorinn [45]

Answer:

multiply 9 from m and -3

9m - 27 + 3m = 7m + 43

12m - 27 = 7m + 43

12m - 7m = 43+ 27

5m = 70 cut 70 by 5 in 14 times [ 14 x 5= 70 ]

m = 14 answer ❤️❤️ it is 100% correct now!

6 0
3 years ago
Read 2 more answers
Hailey cuts a 7-inch square piece of plywood for a birdhouse. She rotates the piece 90° counterclockwise. What is the length in
Readme [11.4K]

Answer:

\huge\boxed{7\  \text{inches}}

Step-by-step explanation:

As I mentioned earlier with a single side (line), rotations do not change the size of something. Only dilations do that. This goes for both lines AND shapes.

However, if the question said she dilated the piece, then yes, the length in inches would be different. However, rotation just changes the position and nothing happens to the length.

Hope this helped!

3 0
3 years ago
Help please. thank you
tatyana61 [14]
I think it D cause 30(cos(30x)+14=-16
Your dividing by 30
your 180 (which is degrees) is
radians. As the cosine function is periodic with period 2 we get

6 0
3 years ago
Read 2 more answers
A student said that since –9 is less than 4, then |–9| is less than |4|. Is the student correct? Explain why or why not
Leno4ka [110]
The student is not correct.

Absolute value means distance from zero
|-9| = 9
|4| = 4

Since 9 is greater than 4,
|-9| is greater than |4|

In other words, -9 is further from zero then 4
5 0
3 years ago
Can someone please help me find the answers to these two questions please?
Sliva [168]

Answer:

Question 13: x = 47°

Question 14: x = 67°

Step-by-step explanation:

Question 13:

add up all the known factors meaning 16, 27 and 90°, then subtract 180 from what you got from adding known factors

Question 14:

out out of all numbers meaning 19, 4 and 90°, then subtract 180 from what you got from adding all known factors

5 0
3 years ago
Other questions:
  • This is Geometry. Could anyone help please? I can't fail this class. My grade is quite low already.
    11·2 answers
  • It’s says 2xy also i need help so pls help me!!*it easy ig but ifg*
    10·1 answer
  • What is the equation for x?.<br> 4x+19=26-3x
    9·2 answers
  • A researcher is investigating whether a new fertilizer affects the yield of tomato plants. As part of an experiment, 20 plants w
    6·1 answer
  • H(n) = -n^2+4+n<br> g(n) = n-1<br><br> Find g(h(n))
    5·1 answer
  • This one too<br> Solve for x<br> z=xy
    14·2 answers
  • Ricardo has 2020 coins, some of which are pennies (1-сent coins) and the rest of which are
    9·1 answer
  • Please help me for this​
    12·1 answer
  • PLSSSSSSSSSSSSSSSS HELP PPLLASSSSSSSS
    13·2 answers
  • Find y.<br> please help if you can
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!