## How do you find values that make an equation true?

To make a true equation, check your math to make sure that the values on each side of the equals sign are the same. Ensure that the numerical values on both sides of the “=” sign are the same to make a true equation. For example, 9 = 9 is a true equation. 5 + 4 = 9 is a true equation.

## What value of x will make the equation true 5?

Hence, for x = 5 , following equation will be true.

## What is the value of x in equations?

The letter “x” is often used in algebra to mean a value that is not yet known. It is called a “variable” or sometimes an “unknown”. In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn’t have to be “x”, it could be “y”, “w” or any letter, name or symbol.

## What value of x will make the equation undefined?

A function of x is undefined when the denominator is equal to zero. To find the values that make a function undefined, set the denominator equal to zero and solve the resulting equation.

## What values of x make the equation x 2 18x 81 0 true?

The value of x which makes the equation x2 – 18x + 81 = 0 true is 9.

## What value of x makes the equation 2x 5 25 true?

X = 20 is the solution of the equation 2x + 5 = 25.

## Which is the value of x?

X is an algebraic variable which has no defined value.

## What value of x will make the rational expression be equal to 0?

When x = 0, the numerator equals 0 but the denominator does not, therefore it is not an excluded value. Set the denominator equal to 0 and solve for x. The correct answer is all real numbers except −4.

## For what value of x is the rational expression?

In the case of rational expressions, we can input any value except for those that make the denominator equal to 0 (since division by 0 is undefined). In other words, the domain of a rational expression includes all real numbers except for those that make its denominator zero.

## What is x²?

What is x squared? x squared is a notation that is used to represent the expression x×x x × x . i.e., x squared equals x multiplied by itself. In algebra, x multiplied by x can be written as x×x x × x (or) x⋅x x ⋅ x (or) xx (or) x(x) x squared symbol is x2 .

## How do you find the value of x in a figure?

Detailed Solution
1. Given: ∠BAC = 65° and ∠ABC = 72°
2. Concept used: Sum of all the angles of a triangle is 180° Sum of two interior angles is equal to the exterior angle. …
3. Calculation: Sum of all the angles of a triangle is 180° …
4. ∴ The value of x is 137° Sum of two interior angles is equal to the exterior angle.

## What is the value of x in quadratic equation?

X is the variable whose value is unknown. The value of this unknown variable for which a given equation become true is called root of the equation.

x²+x² = 2x²

## What does 3² mean?

3 squared is 3² = 3 × 3 = 9. 4 squared is 4² = 4 × 4 = 16. 5 squared is 5² = 5 × 5 = 25.

## What is the answer of X² 9?

One way to solve the quadratic equation x2 = 9 is to subtract 9 from both sides to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored: (x + 3)(x – 3) = 0. Using the zero factor property, you know this means x + 3 = 0 or x – 3 = 0, so x = −3 or 3.

## What is x2 Plus x2?

Answer: x squared plus x squared is 2x2.

## What are the roots of x² 9x 14 0?

Solve x2−9x+14=0 . The answer is x=7 and x=2 .

## How many solutions does X² 9 have?

The equation has no real solutions. It has 2 imaginary, or complex solutions.

## What are the roots of X² 9?

Answer: The roots of the equation are 3, and -3.