Chapter+4.7

CHAPTER 4.7 COMPLETING THE SQUARE

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 * This is a very corny Winnie the Pooh themed song that's pretty helpful on completing the square!!!!!!! **

solve x^2 - 8x + 16 = 25. x^2 - 8x + 16 = 25 Write original equation. (x-4) ^2 = 25 Write left side as a binomial squared. x-4 = +/-5 Take square roots of each side. x = 4 +/-5 Solve for x.
 * Example 1-Solve a quadratic equation by finding square roots /SOLVING SQAURE ROOTS**

>The solutions are 4 + 5 = 9 and 4 - 5 = -1.

Sometimes you need to add a term to an expression x^2 + bx to make it a square. This process is called **completing the square.media type="youtube" key="GyCuj1hx_zc" width="560" height="315"**
 * Perfect** **Squares**- In Example 1, the trinomial x^2 - 8x + 16 is a perfect square because it equals (x-4)^2.

This boring guy should explain to you how to complete a square, if you still dont fully understand it, check out the link below! []

Always solve ax^2 + bx + c = when a=1 Here are some things you should know-

First, whats the difference between a binomial and trinomial? A binomial is the sum of two monomials and a trinomial is the sum of three monomials. A monomial is an algebraic expression consisting of one term.