It is: 1.50p+2.50p+3p = 7p when simplified
An algebraic integer is a number which is a root of a monic polynomial whose coefficients are integers.
32 is an integer and is not capable of simplifying 4, another integer.
Basically, a rational expression would include only additions, subtractions, multiplications, divisions, and integer powers, while an irrational expression could, in addition, include several additional functions, such as roots (or equivalently, non-integer powers), exponential functions, logarithms, trigonometric functions, and just about any other function.
yes
You will get a positive integer. If you subtract a negative number, you will be adding it. I think of it like 2 minuses equals a plus. :P
Not necessarily, for example: If you subtract 3 from 4, then you get +1. But if you subtract 4 from 3, you get -1. The answer will always be an integer, but you cannot make a general statement about the sign, without knowing more information.
subtract the negative from the positive
x -=y;
Yes
Given a set of numbers, their common multiple is (usually) a positive integer which is evenly divisible by each of the set of numbers. Common multiples of variables or algebraic expressions are defined in a similar manner.
If the integer subtracted is smaller than or equal to the first integer, then the answer is positive. Otherwise, if the integer subtracted is larger, then the answer is negative.
less than