There are 4.
a variable minus a number and the same variable is b-6b= -5b
It is "a squared minus eighteen b".
The expression "n - 5" represents the result of subtracting 5 from the variable n. This can also be written as "n minus 5." In algebra, n is a placeholder for a number, so the result of this subtraction would depend on the specific value assigned to n.
The expression "12 minus r" represents the subtraction of the variable "r" from the constant 12. This operation can be simplified as 12 - r. The result is a difference, where the value of "r" is subtracted from 12.
The expression is: 10-x
In the expression 5-4t it is t that is the variable
This is considered an expression "x^2 - 49", or alternatively a function of the variable x. In that sense, when you apply the expression to a certain input (such as x=3) you obtain a number (3^2-49 = -40).
It appears that the question is incomplete and so cannot be answered. There should be a number (or variable) after "minus".
2m^2 - 8 -First you should factor out a two. --> 2(m^2-4) -You now have something squared minus something else squared; You have m squared minus 2 squared. Whenever you have something squared minus something squared as you do in this case, there is a simple rule to remember: You can reduce that expression into the quantity of the square root of the first number or variable plus the square root of the second number or variable Times the quantity of the square root of the first number or variable minus the second number or variable squared. --> In the case of your expression: ----> 2(m+2)(m-2)<-----
a variable minus a number and the same variable is b-6b= -5b
Your variable (a number) X, minus 100. X - 100
It is "a squared minus eighteen b".
The expression "x minus one" represents the result of subtracting one from the variable x. It can also be written as x - 1. This expression is a binomial, a mathematical expression with two terms, in this case, x and -1. The value of "x minus one" will depend on the specific value of x given in the context of the problem or equation.
That is not a valid equation because the linear expression is not a polynomial. You can't have a variable in the denominator.
"An expression of three terms" means that the expression has three parts, combined by plus or minus signs. Within each of these parts (terms), there can be a single number or variable, or a product or division involving several other pieces.
The English expression "the product of two and a number minus eleven" can be mathematically represented as ( 2x - 11 ), where ( x ) is the variable representing "a number." This expression indicates that you first multiply the number by two and then subtract eleven from the result. It effectively combines multiplication and subtraction in a single algebraic statement.
Another rational expression.