Beginning Algebra

Specifically for introductory questions about algebra (Algebra I).
O
Quadratic factoring w/ 3 brackets: solve (x^2 - 4) - 2(x -2)(x - 1) = 0 w/o expanding
Replies
4
Views
1K
mmm4444bot
mmm4444bot
I
How many significant digits are in 1040. and 1040.0?
Replies
12
Views
4K
Denis
D
S
Finding proportions of simple shapes using algebra
Replies
8
Views
1K
Dr.Peterson
Dr.Peterson
I
Why sinx.sinx = sin²x not sin²x²?
Replies
3
Views
2K
Dr.Peterson
Dr.Peterson
T
Word problem: At 6am, 2 ships leave a port, one going S at 18kph, other going W at 23
Replies
2
Views
2K
Steven G
Steven G
A
If f(x)=f(x-1)+5x and f(1)=2 then how to find f(20)?
Replies
4
Views
1K
TomHE
T
I
If x^2 = root (y), then how to calculate the value of x?
Replies
16
Views
2K
mmm4444bot
mmm4444bot
M
Very difficult question: Resolve x^8 + y^8 into real quadratic factors.
Replies
7
Views
1K
JeffM
J
I
If y^2 = 4, then why do we get two values +2 and -2 of 'y'?
Replies
3
Views
1K
tkhunny
tkhunny
I
Why X^(1/2) = root X and X^(-1/2) = 1/root x?
2
Replies
21
Views
4K
Indranil
I
D
Is this a valid expression? x/x-1 = 1/x-1 It would appear that x=1 but that would...
2
Replies
21
Views
3K
dogleg
D
I
If f = A (dv/dx), then how to calculate the value of f?
Replies
11
Views
2K
Steven G
Steven G
S
When to use x^2 coefficient in bracket and when to factorise outside bracket
Replies
11
Views
2K
Dr.Peterson
Dr.Peterson
B
Simplify the Surd (3+2sqrt(5))/sqrt(5): my answer is (3sqrt(5) + 10)/5
Replies
4
Views
2K
bumblebee123
B
B
finding the value of this equation: find the value of m when : sqrt(128)= 2^m
Replies
1
Views
1K
MarkFL
MarkFL
C
Proving Abolutee-Value Identities: |x^2| = |x|^2, |x^n| = |x|^n, |x| = sqrt{x^2}, ...
Replies
3
Views
1K
Dr.Peterson
Dr.Peterson
G
Rectangle has area 96 sq. ft.; if width is 4 ft less than length, what is perimeter?
Replies
17
Views
17K
odizus
O
B
Quadratic equation and probability: bag contains n yellow balls, 7 white balls
Replies
4
Views
2K
Steven G
Steven G
S
Confusion over inverse of a function (involution)
2
Replies
30
Views
4K
Simonsky
S
A
Induction proof: 1^3+2^3+...+n^3=(1+2+3+...+n)^2
Replies
14
Views
3K
kimmysawi
K
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