How are exponents (powers) in an algebraic or arithmetic expression read aloud in Japanese? I did a quick search of the forum for "exponent", "math power" ("power" is obviously too general!) and translations of "exponent" in Japanese according to my EN-JA dictionary but came up blank. =(

For example:

x^4 + bx^3 + cx^2

would be read in English as:

"x

**to the fourth power**plus b x

**cubed**plus c x

**squared**"

"x

**to the fourth power**plus b x

**to the third power**plus c x

**to the second power**"

Or as shorthand (shortmouth?):

"x

**to the four**plus b x

**cubed**plus c x

**squared**"

How would the exponents (bolded above in English) be expressed in Japanese? Are there several ways to express them, as in English? Do Japanese speakers resort to anything akin to "x four" when reading quickly/informally (just reading the numeral after a variable to indicate a power)?

Thanks!

Laogeodritt