Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
I
Radicals for the SAT: why is sqrt[75] = 5sqrt[3] instead of sqrt[5]?
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1
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2K
Dr.Peterson
Dr.Peterson
R
Find the value of z complex: z^2+3z(conjugate)=4/z
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7
Views
2K
Deleted member 4993
D
A
How to set this up? "The RDA of zinc is 15mg; the RDA of ascorbic acid is 45mg..."
Replies
9
Views
2K
JeffM
J
I
Solving thru combination: If 6a+6b=30 and 3a+2b=14 what is value of b?
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8
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3K
Steven G
Steven G
D
X + y + z + w = 100
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4
Views
1K
stapel
stapel
A
Transformations: Let f(x)=a(x-p)^2+q be a quadratic function, where....
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2
Views
1K
Dr.Peterson
Dr.Peterson
I
Functions algebra basics: f(x) = 3/x + 2 is definitely ed for all real value except:
Replies
4
Views
880
Steven G
Steven G
I
Picking numbers: expression is odd integer ("2(2)^2 + 1")
Replies
8
Views
2K
stapel
stapel
T
Calculating Sound Pressure Level
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1
Views
3K
stapel
stapel
E
Simple logarithm question: simplify log(10)^5/log(10)^2 as log(10)^3
Replies
6
Views
2K
evking
E
R
If a,b,c in (0,+infty), abc=1, prove a/(2+bc)+b/(2+ac)+c/(2+ab)>=1
Replies
14
Views
3K
Steven G
Steven G
C
Vectorisation of an indicator function for a search heuristic
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0
Views
662
Comjens
C
M
problem finding the exponent x in equation 0.920301^x + 0.17414^x = 1
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4
Views
2K
HallsofIvy
H
M
Half the square of number is five times that number. Find number. (& 4 others)
Replies
2
Views
1K
stapel
stapel
M
Can someone help w/ 3x – 2 = 7, 10 – 2x = 6, 0.2x + 5 = 10 (& 15 more)
Replies
1
Views
1K
stapel
stapel
S
Inequality inductive proof: Find the lowest integer value for n such that n! > 2^n.
Replies
2
Views
939
JeffM
J
H
Geometric sequences: how to systematically work them out using a method
Replies
7
Views
2K
Dr.Peterson
Dr.Peterson
C
How would I prove an equation (x^2=4x+3) has no integral solution?
Replies
3
Views
1K
JeffM
J
A
easy-looking vector prob: If Ax(BxC) = Bx(CxA), [ABC] * 0, then value of Ax(BxC) is ?
Replies
1
Views
1K
stapel
stapel
A
a question on systems of equations: 4x+y=5 and 7x+3y=10
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5
Views
2K
Bob Brown MSEE
B
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