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# Quadratic Formula

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Author: Laura Kniffin
##### Description:

To teach the quadratic formula in an exciting way.

Let's Do Math is a new cutting edge gameshow to help you with some of your troubles in math. More specifically, we take you into the world of polynomials and quadratic equations.

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Tutorial

## Review

Before you watch this video you may want to review these terms:

Polynomials - sums of variable and exponent expressions.

Quadratic Equation- a polynomial equation of the second degree.   ax2 + bx + c

Variables- any entity that can take on different values. Usually represented by a letter.

Coefficients- a multiplicative factor in some term of an expression (or of a series). It is usually a number.

## Let's Do Math!

The exciting gameshow where contestants solve polynomials using factoring and the quadratic formula!

## Samsam's Final Answer Explained

The steps Samsam took to correctly answer the final question!

## Examples to Try!

1.) y= x2 + 4x + 4

2.) y= -10x2 - 9x + 1

3.) y= -9x2 - 9x + 6

** Be sure to try these yourself before looking at the answers in the next section**

## Answers to the examples!

1.) x = -2

2.) x = -1 and x = 1/10

3.) x = (3±sqrt(33))/ -6

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