# What is the quadratic equation of 8 and 9?

## What is the quadratic equation of 8 and 9?

The standard quadratic equation using the given set of solutions {8,−9} is y=x2+x−72 y = x 2 + x – 72 .

## How does the quadratic formula work?

The quadratic formula helps us solve any quadratic equation. First, we bring the equation to the form ax²+bx+c=0, where a, b, and c are coefficients. Then, we plug these coefficients in the formula: (-b±√(b²-4ac))/(2a) . See examples of using the formula to solve a variety of equations.

**What are the 8 quadratic equations?**

A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.

**How do you find the square root of a quadratic equation?**

For a quadratic equation ax2 + bx + c = 0, The roots are calculated using the formula, x = (-b ± √ (b² – 4ac) )/2a. Discriminant is, D = b2 – 4ac.

### What does ax2 represent?

The term ax2 is called the quadratic term (hence the name given to the function), the term bx is called the linear term, and the term c is called the constant term. Quadratic functions are very good for describing the position of particles under constant (or near constant) acceleration.

### Why do we use the quadratic formula?

In real life, the quadratic formula helps us in determining the area of space, the speed of a moving object, the value of profit gained on a product, and more. Even the path of a space rocket is described in terms of a quadratic equation.

**What is a root of 8?**

The actual answer for the square root of 8 is 2.82842712475.

**What are the roots of 9?**

List of Perfect Squares

NUMBER | SQUARE | SQUARE ROOT |
---|---|---|

6 | 36 | 2.449 |

7 | 49 | 2.646 |

8 | 64 | 2.828 |

9 | 81 | 3.000 |