no x² is the product of 2 rational numbers in this case the same 2 numbers x and x The product of two rational numbers is always rational.
x = 45
The additive identity for rational numbers is 0. It is the only rational number such that, for any rational number x, x + 0 = 0 + x = x
The sum of two numbers is 45 and their difference is 5. What are the two numbers? Let's start by calling the two numbers we are looking for x and y. The sum of x and y is 45. In other words, x plus y equals 45 and can be written as equation A: x + y = 45 The difference between x and y is 5. In other words, x minus y equals 5 and can be written as equation B: x - y = 5
The sum of 45 and 15 equals 60. 15 x 3 equals 45.
X-45=12 ________ +45 +45 ________ x= 57
If both numbers are rational then x plus y is a rational number
If you have a set of 45 numbers, then there is one combination that includes all 45 numbers and 45! = 45 x 44 x 43 x ... x 2 x 1 ≈ 1.19622 x 1056 permutations (ways of ordering) all 45 numbers.
I t is the number 0, which has the property that x + 0 = 0 + x = x for all rational numbers x.
That is the property of infinite density of rational numbers. If x and y are any two rational numbers then w = (x + y)/2 is a rational number between them. And then there is a rational number between x and w. This process can be continued without end.
Yes, the product of two rational numbers is always a rational number.
It depends on what x and y are.