# How do you solve x 2 2x 5 0 by completing the square?

## How do you solve x 2 2x 5 0 by completing the square?

The form for a perfect square is a2+2ab+b2=(a+b)2 . x2+2x−5=0 . Add 5 to both sides of the equation. Divide the coefficient of the x value by 2 , then square the result.

## Is the following equation a quadratic equation why X² 2x 5 X²?

it is not a quadratic equation . because order of this equation is 1.

Is x2 2x 5 a polynomial?

yes, x2 + 2x -5 is polynomial in one variable because it contains only one variable which is x.

What are the roots of the equation x 2 2x 5 0?

Step-by-step explanation: The equation x^2 +2x+5=0 has to be solved. For the given equation, a = 1, b = 2 and c = 5. Then you square root each side to get rid of the exponent.

### Is 2x 5 0 a linear equation?

Yes, 2x – 5 = 0 can be represented as a linear equation in two variables.

### What is square root 24 simplified?

2√6
The square root is √24 = 2√6.

Is 2x X² X² 5 a quadratic equation?

2x – x2 = x2 + 5 can be written as 2 x 2 − 2 x + 5 = 0 So, it also forms a quadratic equation. Hence, the correct answer is x2 + 4x = 11 + x2.

What is the value of K if the roots of 2×2 6x k 0 are real and equal?

Given that the quadratic equation has real and equal roots. If the discriminant of the quadratic expression is equal to zero, then the quadratic expression has equal real and equal roots. Hence the value of k is 92.

#### Is Root 2x 1 a polynomial?

Step-by-step explanation:^2*-1 CAN BE WRITTEN AS ^2*1/2*-1. HERE THE EXPONENT OF 2 IS 1/2,WHICH IS NOT A WHOLE NUMBER.SO,IT IS NOT A POLYNOMIAL.

#### What are the roots of the quadratic equation x 2 3x 2 0?

Hence the root of quadratic equation ${x^2} – 3x – 2 = 0$ are $x = \dfrac{{3 + \sqrt {17} }}{2}$and$x = \dfrac{{3 – \sqrt {17} }}{2}$. Note: To solve questions in which you are asked to find the roots of quadratic equations by quadratic formula you must need to know the formula.