Beginning Algebra

Specifically for introductory questions about algebra (Algebra I).
D
basic quadratics help for equation 6m^2 + 11mn + 3n^2
Replies
6
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3K
JeffM
J
W
Growth Problem: initial value 10, 50 periods, +10 1st period, +20 2nd period, etc
Replies
6
Views
2K
Dr.Peterson
Dr.Peterson
M
Urgent help a short question: Does (-a^3)^2 equal -a^6 or +a^6 ?
Replies
1
Views
850
stapel
stapel
A
How would you show algebraically that this multiplication "trick" does/doesn't work?
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2
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1K
JeffM
J
N
Where's the fallacy in this proof? (that 1 - 1 equals 2)
Replies
7
Views
2K
Denis
D
I
Apparently "Elena" doesn't know how many batches she can make with her ingredients
Replies
1
Views
2K
Dr.Peterson
Dr.Peterson
I
Radicals and rational exponents: How is "30 = 1" a true statement?
Replies
5
Views
2K
HallsofIvy
H
Y
arcsin and arctan: arcsin(1/sqrt[5]) = (1/2) arctan(4/3); arcsin(th x) = arctan(sh x)
Replies
2
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3K
Dr.Peterson
Dr.Peterson
S
Simplify this equation: -(t - 3)^2 + 6(t - 3) - 11
Replies
7
Views
3K
Saturnize
S
R
Proof by mathematical induction: 1^2+42+7^2+10^2+13^2+...+(6n+1)^2=(2n+1)(12n^2+9n+ 1)
Replies
4
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3K
JeffM
J
3
Work with averages: The mean weight of 9 players and 3 reserve players is 188 pounds.
Replies
1
Views
2K
Deleted member 4993
D
Steven G
Question: what are the conditions on k for ka + b/k = a+b ?
Replies
7
Views
2K
Dr.Peterson
Dr.Peterson
I
How to calculate x=3 and y=2, if 2x=3y?
Replies
3
Views
2K
Deleted member 4993
D
N
How does 2 to the 2.63 power equal 6.19?
Replies
5
Views
4K
JeffM
J
B
Rearrange Equation Q = AD^2 x BD^{2/3} To Find D
Replies
2
Views
1K
Denis
D
S
quadratic equation: I factor as 6x^2 + x - 2, but book says (2x - 1)(3x + 2)
Replies
13
Views
3K
JeffM
J
S
polynomials: why must polynomials be ordered by degree in order to properly divide by
Replies
2
Views
2K
Dr.Peterson
Dr.Peterson
I
Reciprocals of integers, sides of right triangle: least possible sum of integers
Replies
1
Views
1K
Denis
D
B
Algebraic manipulation: Factorise 9x^2 -1; hence, factorize 899, 8.99 x 10^4
Replies
5
Views
3K
sinx
S
B
Find the equation of the line through (3,7); parallel to 3x-y=1.
Replies
5
Views
1K
dtrud
D
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