# Questions tagged [algebra-precalculus]

For questions about algebra and precalculus topics, which include linear, exponential, logarithmic, polynomial, rational, and trigonometric functions; conic sections, binomial, surds, graphs and transformations of graphs, solving equations and systems of equations; and other symbolic manipulation topics.

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### Does the remainder theorem work for constant function?

The remainder theorem stated that " If a polynominal f(x) is divided by (x-k), the remainder is f(k)." So I think of a constant function ,say, f(x)= 5 and I divide this by (x-1). According ...
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### What is the difference between the principal square root of $x$ and $x^{1/2}$?

Today I learned that the square root symbol ($\sqrt{}$) represents only the "principal" square root of a number. What about exponents?—if I write $x^{1/2}$, would that encompass the negative ...
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