Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
T
Lcm: I've written a program to calculate the HCF & LCM for 2 or more numbers....
Replies
4
Views
896
TheOAP
T
R
Three variables, non-linear system of equations
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1
Views
471
Deleted member 4993
D
A
How can those two minus x squares disappear like that? Who is right?
Replies
12
Views
2K
Dr.Peterson
Dr.Peterson
S
Prove by Induction that 3 raised to 2n+1 + 2 raised to n-1 is divisible by 7
Replies
3
Views
752
Dr.Peterson
Dr.Peterson
MeowMori
Help please w/ "For real x_i s.t. 0 < x_1 <= x_2 <=...<= x_n, n>=2, & 1/(1+x_1) + ...
Replies
9
Views
1K
Dr.Peterson
Dr.Peterson
S
Mathematical Induction: sum[k=1,n][1/((2k-1)(2k+1)] = n/(2n+1), for n>= 1
Replies
3
Views
595
Deleted member 4993
D
G
help me please
Replies
4
Views
774
mmm4444bot
mmm4444bot
A
Describe the end behavior of graphed functon
Replies
1
Views
481
mmm4444bot
mmm4444bot
W
Problem w/ limit which I do not understand: lim[x->+inf] (1-1/2)*(1-1/3)*...*(1-1/n)
Replies
3
Views
603
mmm4444bot
mmm4444bot
H
How do I factor 4x^2+18x-10? Can this be factored or not?
Replies
6
Views
2K
stapel
stapel
S
simplify 5 - |x - 5|, given that x >5 (I'm getting "10" cuz...)
Replies
14
Views
1K
pka
pka
S
Co-ordinate Geometry: equation of l1 is y-x=2, of l2 is 2y+3x=-24; find PQR's area
Replies
2
Views
845
pka
pka
M
I know answer; am struggling to explain how to get it: 2n^3+n^2-11n+12/n+3
Replies
5
Views
861
mmm4444bot
mmm4444bot
A
Exponential Function Question: Coal reserves in a country in 2018 are 11,750 Quads
Replies
2
Views
1K
alecahol
A
S
A finite square inequality: sqrt[1 + sqrt[2 + sqrt[3 + ... sqrt[n]]]] < 3
Replies
1
Views
652
Harry_the_cat
Harry_the_cat
B
Where do I even start? M(h)=6.2h-8 gives number of miles for electric car in h hours
Replies
2
Views
634
pka
pka
S
Logarithmic inequality: log_a[(2ab)/(a+b)] * log_b[(2ab)/(a+b)] >= 1
Replies
6
Views
2K
Stas
S
B
PreCalc: If ad = bc then a/b = c/d (hint: assume ad=bc; start w/ ab-1, transform...)
Replies
11
Views
1K
Denis
D
B
Prove | z - Re(z) | >= | z - x |
Replies
5
Views
890
Bronn
B
A
How can this be? Simplify (600x)/(300x - 300); find time for 4/5 delivery
Replies
12
Views
1K
allegansveritatem
A
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