Q: What is the variable x squared?

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It is a quadratic equation in the variable x.

No. It is an equation. A function would link the variable x to another variable - possibly denoted by y. It is a relationship between two (or more) variables.

It is one number or variable squared subtracted from another Such as x^2-y^2 since this factors as (x-y)(x+y)

No, if there is a sqaured variable, the equation is not linear.

depending on your number's you plug them in differently.there is no real formula or equation for writing a polynomial.let's say you have the number; 8. & the variable; x(squared).you would get the polynomial: 8x(squared).you're pretty much just placing the number & variable together.hope that helped!(:

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A variable times the same variable is called a square of that variable. For example, if the variable is x, then x multiplied by x is written as x^2, which is read as "x squared."

It is a quadratic expression in the variable x.

No. "x" is the variable. Any calculation involving a variable would be an EXPRESSION.

(1 - cos(2x))/2, where x is the variable. And/Or, 1 - cos(x)^2, where x is the variable.

It is a quadratic equation in the one variable.

It is an expression whose value will depend on the value of the variable x.

X2/X = X ======= I do not think you can divide one variable type by another.

x^2 * x^2 = x^4. When multiplying two variables with exponents, you simply have to add the exponents together, keeping the same variable. So in this case you'd add 2+2 to get a variable to the 4th power.

You can calculate a value if you assign a value to variable "x".

It is a quadratic equation in the variable x.

No. It is an equation. A function would link the variable x to another variable - possibly denoted by y. It is a relationship between two (or more) variables.

It is a quadratic equation with one unknown variable, x which has no real roots.