Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
K
Find the value of k for which equation (x+2)(x+k)=-9 has equal roots
Replies
3
Views
550
Dr.Peterson
Dr.Peterson
0
Arg vs arg: Let z = (1 - 7i)/(3 + 4i). Express z in the form a + bi. Find Arg z^2.
Replies
5
Views
884
pka
pka
T
Finding complex factors of 9z^3 - 18z^2 + 5z - 10 = 0, given z - 2 is a factor.
Replies
1
Views
568
Steven G
Steven G
Qwertyuiop[]
Sequence induction proof: u_0 = 3, u_n = (u_{n-1} + 2n^2 - 2)/(n^2) for N*
Replies
14
Views
1K
Dr.Peterson
Dr.Peterson
T
Finding the complex roots of an equation: z^2 - 4 cos(alpha) + 4 = 0, 0<alpha<pi/2
Replies
2
Views
760
pka
pka
T
Simplify 5√2 x √8 / 2√2
Replies
5
Views
715
Dr.Peterson
Dr.Peterson
W
Calculating Continuous Decay
Replies
2
Views
747
Dr.Peterson
Dr.Peterson
W
Using a Graphing Calculator to Find an Exponential Function
Replies
1
Views
534
stapel
stapel
Qwertyuiop[]
sequence question
Replies
7
Views
895
topsquark
topsquark
Qwertyuiop[]
Show that a sequence is bounded above
Replies
6
Views
629
blamocur
blamocur
Qwertyuiop[]
Prove that a sequence is increasing: u(n) = (4n^2 + 1) / (n^2 + 1)
Replies
9
Views
1K
Steven G
Steven G
G
Maths Problem of Simultaneous Equations: "Each week the junior civil servant in Downing Street wheels a suitcase...."
Replies
9
Views
879
Dr.Peterson
Dr.Peterson
C
Help
Replies
3
Views
518
khansaheb
K
Steven G
I must be tired, real tired
Replies
11
Views
1K
JeffM
J
A
Understanding quadratic inequalities: 2 questions about solution for 2x^2+1 > 4x
Replies
4
Views
681
Alex McCaile
A
W
The concentration C of a drug in a patient’s bloodstream: use a calculator to approximate...
Replies
6
Views
2K
Dr.Peterson
Dr.Peterson
C
Downsampling Gradually Increasing Frequency Data While Preserving Ratio
Replies
1
Views
483
blamocur
blamocur
L
Have I proved Fermat last theorem?
Replies
4
Views
584
lrerpqu
L
Steven G
Trick or Treat: What trick would you use in solving x^2 - x^3 = 12?
Replies
19
Views
1K
Steven G
Steven G
D
For f(x) = x^2 + 9x, find [f(x+h)-f(x)]/h, [f(w)-f(x)]/(w-z)
Replies
5
Views
646
stapel
stapel
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