Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
J
Logarithms: Solve log_5(x) = 4 log_x(5): I get x=0.04, 25; only 25 is right?
Replies
4
Views
2K
JHY
J
B
Struggling: eed to know the total xp required to reach 1000
Replies
4
Views
1K
HallsofIvy
H
H
How does 5x_1^2-6x_1x_2+5x_2^2+4x_1+4x_2 become (1/2) x^T [[10 -6][-6 10]]x + [4 4]x?
Replies
1
Views
559
stapel
stapel
N
rational function w/ vertical asympt's at x = -2, x = 3, x-int at 0, hor. asympt. y=2
Replies
3
Views
993
topsquark
topsquark
M
X+15% = 20 000 I am so disappointed with myself (computing w/ VAT)
Replies
2
Views
942
HallsofIvy
H
shahar
Why logarithm's base is limited? log_x(f(x)) < log_x(g(x)), x<=0
Replies
7
Views
1K
shahar
shahar
D
Inverse of a generic Matrix A such that A^2+xA+yI_n = 0, x,y real
Replies
5
Views
1K
diogomgf
D
A
what is going on here? (x/(x+3)) / ((x/(x+3) + x)
Replies
9
Views
1K
allegansveritatem
A
D
Polynomial Question: 4x^3 - 9x^2 +6x -1
Replies
7
Views
2K
Steven G
Steven G
D
Linear Algebra: For A=[[7 4][-9 -5]], show A^k=[[1+6k 4k][-9k 1-6k]]
Replies
5
Views
1K
diogomgf
D
N
cylindrical can w/ height h, radius r; diff. parts have diff. costs; maximize volume
Replies
4
Views
775
JeffM
J
N
cylindrical can w/ height H, radius r
Replies
4
Views
1K
JeffM
J
Phatfoo
Determinant's value should be -15; I get 45; where am I going wrong?
Replies
3
Views
672
Phatfoo
Phatfoo
N
Solve sqrt{3}/4 + sqrt{3}/(8g)*(-6g^2L+2gv^2)/(-3g^2L^2+2gv^2L+v^4)=0 for L
Replies
3
Views
709
JeffM
J
G
exam tomorrow: Solve 2sin^2(x) - (5/2) sin(2x) - cos^2(x) + 2 = 0
Replies
1
Views
496
Deleted member 4993
D
K
Equations in Quadratic Form: Solving 3x^2 - 2x - 2 = 0
Replies
5
Views
1K
KH%3
K
B
simplify (matrices) (A B A^-1)^6
Replies
3
Views
2K
Bronn
B
P
Numerical Problem (House Price Index)
Replies
2
Views
852
JeffM
J
DynV
Formula from table with operation restrictions 2 (col2 is only a helper)
Replies
4
Views
1K
DynV
DynV
P
Solving System of equations: ln(e^x+e^y)=5 and e^(ln(x)/ln(y))=1/e
Replies
5
Views
847
Steven G
Steven G
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