Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Question
All Questions
+0
237754 Questions
0
40
0
+750
Algebra
Find all complex solutions to the equation z^2 = -55 - 48i + 40 + 63i.
siIviajendeukie
Feb 22, 2025
0
29
0
+750
Algebra
Find all complex solutions to the equation z^3 = 8i - (15 + 2i)z^2 + (7 - 4i)z.
siIviajendeukie
Feb 22, 2025
0
26
0
+977
Algebra
Find all complex numbers z such that |z - 1| = |z + 3| + |z - 2i|.
magenta
Feb 22, 2025
0
28
0
+977
Algebra
For parts (a) through (d), let f(x) = 2x^2 - 13x + 20 - 5x^2 + 19x + 7.
What is the vertex of the parabola y = f(x)?
magenta
Feb 22, 2025
0
36
0
+977
Algebra
Find the solutions x of the equation
2ix^2 + x + 15i = 7ix - 4
magenta
Feb 22, 2025
0
15
1
+977
Algebra
Find all solutions $x$ to the equation
5(2x + 1) + 5*2 = 5*x + 5(x + 3).
●
magenta
Feb 22, 2025
0
29
0
+343
Algebra
Determine the set of all real x satisfying
x^2 + 3x >= -2 - 5x^2 + 10x - 13.
Enter your answer in interval notation.
jaekg
Feb 22, 2025
0
42
0
+343
Algebra
Determine the set of all real x satisfying
x^3 - 2x^2 - 3x < -25x^2 + 17x.
Enter your answer in interval notation.
jaekg
Feb 22, 2025
0
36
0
+343
Algebra
Determine the set of all real x satisfying
(x^2 - 5x + 3)^2 < 9 + 6x + x^2
Enter your answer in interval notation.
jaekg
Feb 22, 2025
0
30
0
+343
Algebra
Find all nonzero constants $a$ such that
ax^2 + 7x + 2 = 5x^2 + 23x - 12
has only one distinct root.
jaekg
Feb 22, 2025
0
29
0
+456
Algebra
Find all complex solutions to the equation z^4 = -64 - 16z^2.
Enter all the solutions in the form $a + bi$, where $a$ and $b$ are real numbers.
Jasmo
Feb 22, 2025
0
39
0
+456
Algebra
Find all complex solutions to the equation z^8 + 16 = 17z^4 - 8z^6 - 8z^2.
Jasmo
Feb 22, 2025
0
38
0
+456
Algebra
Determine the range of the function $(x) = -4x^2-8x-6 + 3x^2 - 17x + 10. Enter your answer in interval notation.
Jasmo
Feb 22, 2025
0
39
0
+456
Algebra
Determine the range of the function g(x) = 5x^2 - 2x + 1 + 3x^2 + 20x + 18. Enter your answer in interval notation.
Jasmo
Feb 22, 2025
0
38
0
+483
Algebra
Let P(x) be a polynomial of the form
P(x) = 2x^3 + ax^2 - 23x + c,
such that 12 and 7 are roots of P(x). What is the third root?
For the polynomial in part (a), compute the ordered pair (a,c).
bIueb3rry
Feb 22, 2025
0
41
0
+483
Algebra
Let P(x) be a polynomial of the form
P(x) = 2x^3 + ax^2 - 23x + c,
such that 3 and 1 are roots of P(x). What is the third root?
For the polynomial in part (a), compute the ordered pair (a,c).
bIueb3rry
Feb 22, 2025
0
27
1
+31
Geometry question (again)
In triangle ABC, AB=AC, and angle A is equal to 36. Point D is on AC so that BD bisects ABC.
(a) Prove that BC = BD = AD.
(b) Let x = BC and let y = CD. Using similar triangles BCD and ABC, write an equation involving x and y.
read more ..
●
Jasino
Feb 22, 2025
0
23
2
+31
Geometry question
Quadrilateral PQRS is a trapezoid with bases PQ and RS. The median MN meets the diagonals PQ and QS at X and Y, respectively, with X between M and Y as shown below. Find PQ.
<
read more ..
●
●
Jasino
Feb 22, 2025
0
33
0
+483
Algebra
Let a and b be integer such that (2 + sqrt(5))(137) = a + b sqrt(5). Compute a^2 - 5b^2.
bIueb3rry
Feb 22, 2025
0
12
1
+483
Algebra
Let (2 + \sqrt{5})(137) = a + b \sqrt{5}, where a and b are integers. Compute a^2 - 5b^2.
●
bIueb3rry
Feb 22, 2025
Feb 21, 2025
0
16
1
+483
Algebra
There are integers b, c for which both roots of the polynomial x^2 - x - 3$ are also roots of the polynomial x^3 - bx^2 - c. Determine the ordered pair (b,c).
●
bIueb3rry
Feb 21, 2025
0
39
0
+483
Algebra
Find a monic quartic polynomial f(x) with rational coefficients whose roots include x = 1 + \sqrt{5} - 7 + \sqrt{3}. Give your answer in expanded form.
bIueb3rry
Feb 21, 2025
0
21
1
+6
Man im stuck pretty bad
Man im stuck pretty bad
log(y)+log(2) = log(a^(-x)+a^x) solve for x
mymilestonecard
●
mymilestonecc
Feb 21, 2025
0
1
24
0
+1761
Algebra
Suppose P(x) is a polynomial of smallest possible degree such that:
* P(x) has rational coefficients.
* P(-2) = P(\sqrt{5}) = P(\sqrt{7}) = P(\sqrt{17}) = 0.
* P(-1) = 13.
Determine the value of P(0).
parmen
Feb 21, 2025
«
latest
9509
9508
..
9479
9478
9477
9476
9475
..
2
1
»
Post New Question
0 Online Users
Top Users
+130556
CPhill
moderator
+37191
ElectricPavlov
+15145
asinus
moderator
+2399
Bosco
+1761
parmen
+1301
AnswerscorrectIy
+987
booboo44
+857
cooIcooIcooI17
+818
maximum
+678
Straight
+311
CInsbstnkng
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.