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user 85795
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56 votes
26 answers
23k views

"Negative" versus "Minus"

9 votes
4 answers
2k views

Middle school number theory

7 votes
5 answers
5k views

High school math definition of a variable: the first step from the concrete into the abstract...

7 votes
1 answer
9k views

What is the Scientific Notation of Zero?

6 votes
4 answers
420 views

How do you read the symbol "$\in$"?

5 votes
1 answer
166 views

Is this a misuse of the word "evaluate"?

5 votes
1 answer
1k views

What does "percent of change" mean?

5 votes
5 answers
2k views

Is the division property of equality just a special case of the multiplication property?

4 votes
4 answers
1k views

Factor $14x^2 - 17x + 5$.

4 votes
4 answers
431 views

Could somebody please help me prove $\frac{a}1=a$ using the properties of real numbers introduced in elementary algebra?

4 votes
2 answers
154 views

I have to think of a metric that makes (0,1) an unbounded interval

4 votes
3 answers
527 views

Solve $ax - a^2 = bx - b^2$ for $x$

3 votes
5 answers
446 views

Infinity isn't a Number

2 votes
2 answers
7k views

What is the difference between the domain of a variable and the domain for an equation?

2 votes
2 answers
153 views

About the function $ f(a) = \int \limits_0^{\infty} \frac{\ln y}{e^{ay} + 1} \ dy $

2 votes
3 answers
658 views

Factoring by grouping: $x^4 - y^4 -4x^2 + 4$

2 votes
1 answer
270 views

In the proportion $\frac{ x}{100} = \frac{a}{total}$ which is the percent: $x$ or $\frac{x}{100}$?

2 votes
1 answer
2k views

Finding all possible pairs of positive integer values

2 votes
3 answers
364 views

How to solve the pair of equations $4a-11b+12c=22$ and $a+5b-4c=17$ over the integers?

1 vote
3 answers
1k views

How exactly does the response "infintely many" answer the question of "how many"?

0 votes
4 answers
304 views

Find the tangent of the curve $y^2+2x=13$ [closed]

0 votes
1 answer
99 views

Trying to explain what "consistent" means to a middle schooler

-1 votes
3 answers
322 views

Unambiguous Way of Stating a Biconditional in Plain English [closed]

-2 votes
3 answers
231 views

"the product of the factors" versus "the factors of the product" [closed]

-2 votes
1 answer
122 views

How do I prove the corollary to the multiplicative property of $0$?