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
kipiarov [429]
3 years ago
14

Simplify (√2+1)² + (√2-1)²​

Mathematics
1 answer:
rusak2 [61]3 years ago
4 0

Answer:6

Step-by-step explanation:

*we solve every bracket alone

-(√2+1)² =  [rule:1st *1st + 2*1st*2nd + 2nd*2nd]

2+2√2+1

3+2√2

-(√2-1)=  [rule:1st*1st - 2*1st*2nd + 2nd+2nd]

2-2√2+1

3-2√2

-we write the whole equation

3+2√2+3-2√2 (+2√2 - 2√2) {positive and negative remove each other}

3+3=6

You might be interested in
PLS HELP WILL GIVE BRAINIEST!!!!!! Enter your answer and show all the steps that you use to solve this problem in the space prov
elena-s [515]

Answer:

-55

Step-by-step explanation:

Substitute the given numbers for the variables; a = -6, b = -5

5(-6)+5(-5)

-30-25=-55

Hopefully this helps!

8 0
3 years ago
Read 2 more answers
What is the value of y?<br><br><br> y =
nata0808 [166]
Y=64

79+37=116
180-116=64

all angles of a triangle adds up to 180
add the two given angles and subtract that from 180 to find the missing angle
8 0
3 years ago
The triangles are similar.<br> What is the value of x?<br> Enter your answer in the boX.
matrenka [14]

6x+28=25

or,x=-1/2

Step-by-step explanation:

corresponding sides i think so

6 0
3 years ago
Read 2 more answers
PLEASE HELPPPPP
Serggg [28]

Answer:

C

Step-by-step explanation:

Please mark brainliest

5 0
3 years ago
A ball is thrown into the air with an upward velocity of 32 ft/s. Its height h in feet after t seconds is given by the function
yan [13]
For this case we have the following equation:
 h = -16t2 + 32t + 6
 Deriving we have:
 h '= -32t + 32
 Equaling to zero:
 -32t + 32 = 0
 We clear the time:
 t = 32/32
 t = 1 s
 We are now looking for the maximum height:
 h (1) = -16 * (1) ^ 2 + 32 * (1) + 6
 h (1) = 22 feet
 Answer:
 
The ball reaches its maximum height in:
 
t = 1 s
 
The ball's maximum height is:
 
h (1) = 22 feet
 
option: 22 ft, 1 s
8 0
3 years ago
Other questions:
  • The function f(x)=log[7]x is increasing. True or false
    8·2 answers
  • Encik Zulhazim deposited RM8000 in a fixed deposit account at Bank T for 2 years with interest rate of 5% per annum. What is the
    9·1 answer
  • If A and B are independent events with P(A) = 0.5 and P(B) = 0.5, then P(A ∩ B) a. is 1.00. b. is 0.5. c. is 0.00. d. None of th
    13·1 answer
  • Answer the following questions about this figure. <br> PLS HELP ME
    14·2 answers
  • How do i solve 3x=6/7
    11·1 answer
  • The newly elected president needs to decide the remaining 7 spots available in the cabinet he/she is appointing. If there are 12
    13·1 answer
  • PLEASE HELP ASAP!!!!
    14·2 answers
  • Solve: 7 -2x= 2(x - 4) - 1
    13·1 answer
  • Which of the following data sets shows no correlation?<br> A<br> B<br> с
    6·1 answer
  • What is ∑n=17(10n+90) equal to?<br><br> Enter your answer in the box.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!