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
kaheart [24]
3 years ago
15

Maths i need help with quadratics example (x-2)squared +1

Mathematics
1 answer:
Makovka662 [10]3 years ago
5 0
                         (x - 2)² + 1 = 0
                 (x - 2)(x - 2) + 1 = 0
          x(x - 2) - 2(x - 2) + 1 = 0
x(x) - x(2) - 2(x) + 2(2) + 1 = 0
            x² - 2x - 2x + 4 + 1 = 0
                   x² - 4x + 4 + 1 = 0
                         x² - 4x + 5 = 0
                                        x = <u>-(-4) ± √((-4)² - 4(1)(5))</u>
                                                             2(1)
                                        x = <u>4 ± √(16 - 20)</u>
                                                        2
                                        x = <u>4 ± √(-4)
</u>                                                   2<u>
</u>                                        x = <u>4 ± 2i</u><u>
</u>                                                  2<u>
</u>                                        x = 2 ± i
                                        x = 2 + i    U    x = 2 - i
                                        The solution set is {2 ± i}.
<u />
You might be interested in
Plz help me I'm really stuck read <br> it carefully
max2010maxim [7]
2.  4/16=1/4  

3. 16/24=2/3

4 0
3 years ago
Can anyone help me with this question? Thanks
Alex777 [14]

Answer:

I think it's 15.2cm and 19.2cm

Step-by-step explanation:

The ratio of corresponding sides of similar triangles are equal.

8 0
3 years ago
Read 2 more answers
M&lt;A=30° m&lt;B=50° What is the measure of Angle C ?
Delvig [45]
It's 100; 180-50-30=100
6 0
3 years ago
I am struggling.. 10 for this answer
natulia [17]

Answer:

B. The rate of change are the same, but the u-intercept are different

Step-by-step explanation:

4 0
2 years ago
Look at the picture plzz
Pavel [41]
2h+7=-18
2h=-25
H= -12.5
5 0
3 years ago
Other questions:
  • Look Down Below For question:
    8·2 answers
  • I'm really confused on this question, can somebody help me?
    13·1 answer
  • If you forgot to study for a quiz with 10
    6·1 answer
  • How do I get my hair to grow
    14·1 answer
  • A singing competition is auditioning 31 contestants each hour for the next h hours. which equation can be used to find the total
    10·1 answer
  • What is the median of the data set? 24, 2, 13, 12, 2, 5, 10, 18
    8·1 answer
  • Please help me find the value of x
    7·1 answer
  • I’ll give the Brainliest to who answers this question with a reasonable explanation.
    8·2 answers
  • Sin θ = 12/37. Find tan θ.
    7·2 answers
  • There are 20 students 15 men and 5 women in a maths class,in how many different ways can a committee of 3 men and 2 women be cho
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!