It is: 1.50p+2.50p+3p = 7p when simplified
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.
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.
yes
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.
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
subtract the negative from the positive
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.
to subtract an integer, add its opposite or additive inverse.
x -=y;
Yes
gavin