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
Serjik [45]
2 years ago
9

Tính (x+1)^3-x(x-2)^2-1

Mathematics
1 answer:
Amanda [17]2 years ago
6 0

Answer:

7x^2-x

Step-by-step explanation:

You might be interested in
(y - 2)2 = y2 – 6y + 4<br> Is this statement true or false?
trasher [3.6K]
<h3>Answer: False</h3>

==============================================

Explanation:

I'm assuming you meant to type out

(y-2)^2 = y^2-6y+4

This equation is not true for all real numbers because the left hand side expands out like so

(y-2)^2

(y-2)(y-2)

x(y-2) .... let x = y-2

xy-2x

y(x)-2(x)

y(y-2)-2(y-2) ... replace x with y-2

y^2-2y-2y+4

y^2-4y+4

So if the claim was (y-2)^2 = y^2-4y+4, then the claim would be true. However, the right hand side we're given doesn't match up with y^2-4y+4

--------------------------

Another approach is to pick some y value such as y = 2 to find that

(y-2)^2 = y^2-6y+4

(2-2)^2 = 2^2 - 6(2) + 4 .... plug in y = 2

0^2 = 2^2 - 6(2) + 4

0 = 4 - 6(2) + 4

0 = 4 - 12 + 4

0 = -4

We get a false statement. This is one counterexample showing the given equation is not true for all values of y.

6 0
2 years ago
Read 2 more answers
Solve the inequalities and graph the solution 7d+8&gt;29<br><br><br><br><br><br>​
vichka [17]

The answer is d>3

I cant put it graphed but it is open circle on three and the line pointing 4, 5, 6, 7,

8 0
2 years ago
Need help with this question
Sliva [168]

Answer:

EF= 24

Step-by-step explanation:

\sqrt{26^{2} - 10^{2} = 24

7 0
3 years ago
Please Help! NO LINKS !!!!!
lesantik [10]

Answer:

I'll try to help gimme a min

4 0
2 years ago
43 divided by 569= ?
krok68 [10]
43 divided by 569 is 24,467
4 0
3 years ago
Read 2 more answers
Other questions:
  • 35 in<br> 37 in<br> Find area and round to the nearest hundredth
    7·1 answer
  • Boris invested his savings in two investment funds. The $12,000 that he invested in fund a returned a 6% profit the amount that
    15·1 answer
  • Plz help it's due today ​
    9·2 answers
  • The smallest of three consecutive integers is 24 less than the sum of the two larger integers. Find the three integers.
    10·1 answer
  • On the first
    7·1 answer
  • 5c+16.5=13.5+10c<br> solve for c
    5·2 answers
  • The question is in the screenshot attached. Thank you!
    6·1 answer
  • Please give me the correct answer ​
    9·1 answer
  • Y+4=2y-3, find y and show your work.<br>​
    6·2 answers
  • Question below in photo!! Please answer! Will mark BRAINLIEST! ⬇⬇⬇⬇⬇⬇⬇
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!