Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
U
Sigma Problem: If sum{m=1,5} (x-3m) = sum{m=1,8} (x-3m), prove sum{r=1,13} (x-3m) = 0
Replies
5
Views
2K
urimagic
U
U
Sigma Lh=Rh: We have Sigma notation k=3 to n; (2k-1)n....we have to prove this is equal to n^3-4n
2
Replies
28
Views
9K
urimagic
U
S
an efficient algorithm for Mul & Div of big numbers
Replies
3
Views
1K
Dr.Peterson
Dr.Peterson
S
Given that 3-2i is a zero of x^4 - 6x^3 + 8x^2 + 30x - 65, find all zeroes.
Replies
7
Views
2K
Steven G
Steven G
C
Are these really quadratic equations? (2/3)x^2 - (2/3)x = 0 and 6x^2 - 1 = 0
2
Replies
20
Views
4K
chijioke
C
J
Number sequences: Find nth term for P(1) = MP(0) + C where M and C are constants
Replies
3
Views
1K
Dr.Peterson
Dr.Peterson
M
Help With Composite Function: h(x) = -x (-1<=x<0), x (0<=x<=1), g(x) = -tan(x)
Replies
3
Views
1K
Steven G
Steven G
X
Functions question (investment scenarios using f(t) and g(t))
Replies
1
Views
838
BeachBanana
BeachBanana
B
Weird Function (found in Desmos)
Replies
6
Views
7K
benpeters458
B
S
Partial Fractions: 5/[(s^2+1)(s^2+2s+2)], (5p^2+8)/[(3p^2+2)(2p^2-1)]
Replies
2
Views
929
Otis
Otis
F
I don't know how to do part 2 of this question: "As Kate gets more efficient at making cakes..."
Replies
1
Views
927
R.M.
R
C
Issues with sum and product of roots of quadratic equation
Replies
5
Views
2K
chijioke
C
B
Polynomials - Factor and Remainder Theorem
Replies
5
Views
1K
BeachBanana
BeachBanana
R
[SOLVED] Two numbers differ by 6. If the numbers are squared then added the sum is 146. Determine the numbers.
Replies
5
Views
4K
lookagain
L
C
Substitution in fraction: Given that x/y = 2/7, evaluate (7x + y) / (x - (y/7))
2
Replies
20
Views
5K
Dr.Peterson
Dr.Peterson
S
Find the domain and range of the function f(x) = (sqrt(x + 2))/(x ^ 2 - 9)
Replies
2
Views
1K
Dr.Peterson
Dr.Peterson
F
Interval notation question
Replies
3
Views
1K
frctl
F
N
Proof by induction
Replies
9
Views
2K
Nemanjavuk69
N
A
How to derive a general expression for the shortest distance between the origin and a straight line on a 2D cartesian plane?
Replies
14
Views
4K
pka
pka
M
let x = a b c and y = u v . which of the following arrow diagrams define functions from x to y
Replies
3
Views
2K
pka
pka
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