Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
G
Help with piecewise functions: find "a" so y = 2x-1 for x <=4, a+5x, x>4, is continuous
Replies
6
Views
684
pka
pka
R
Show that 1−x−x^n+x^(n+1) is exactly divisible by 1−2x+x^2
Replies
8
Views
819
NotJeffM
N
J
Tide ? "A swimmer covers a distance of 112 miles on both legs...."
Replies
4
Views
476
limiTS
L
F
Please help me find out what group of sequence the number 2678 is in.
Replies
5
Views
515
Dr.Peterson
Dr.Peterson
W
(Is my solution correct?) Rate Word Problem: "Tom can build a bicycle in ten days. After four days,..."
Replies
19
Views
1K
skeeter
skeeter
J
Half Life: Find a, R for geometric sequence for iodine-131 decay
Replies
1
Views
535
stapel
stapel
G
Find the Vertex form of f(x) = -4x^2 + 4x + 3
Replies
4
Views
588
stapel
stapel
P
What is the largest integer number a for which a³ + 25 is divisible by a + 5?
Replies
7
Views
729
Steven G
Steven G
V
Find the sum of all positive integer solutions less than 6 satisfying the inequality
Replies
14
Views
1K
khansaheb
K
S
complex numbers: [e^{3pi i / 2} - e^{5pi i / 6}] / [e^{pi/2} - e^{5pi i / 6}]
Replies
4
Views
584
stapel
stapel
C
Determine all positive integers n such that, for any natural number m ≥ 1, the following equality holds:
Replies
5
Views
466
Dr.Peterson
Dr.Peterson
R
Distance , Speed , Time ? "Toda , Jim walks from a to b & back @ a steady speed of 4 mph..."
Replies
3
Views
455
The Highlander
The Highlander
M
how do I expand this logarithmic equation? i have to expand log(100/x^2y)^2
Replies
2
Views
398
Dr.Peterson
Dr.Peterson
J
Unsure if the answer is correct and if so, why?
Replies
1
Views
402
Dr.Peterson
Dr.Peterson
A
How do I simplify this pure trigonometric equation? sec^4(x) = tan^4(x) + 3tan(x)
Replies
3
Views
767
khansaheb
K
A
Is there a substitution method to solve pure trigonometric equations?
Replies
6
Views
690
nasi112
N
N
How does λ − 4 divided by λ^3 − 8λ^2 + 17λ − 4 equal λ^2 − 4λ + 1?
Replies
4
Views
632
NotJeffM
N
A
How do I discover a hidden Greatest Common Factor in a trigonometric rational function?
Replies
5
Views
563
Dr.Peterson
Dr.Peterson
A
Stumped on the verification of a purely trigonometric identity
Replies
6
Views
488
Harry_the_cat
Harry_the_cat
G
Cannot figure out how to solve for x, y: sqrt{x} - sqrt{2y} = sqrt{12} - sqrt{8}; 4^{x/y} - 3*4^{(5y-x)/y} = 16
Replies
8
Views
681
gamaz321
G
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