Example of factorable quadratic equation, Algebra

Assignment Help:

Complete the square on each of the following.

                      x2  -16x

Solution

                          x2 -16x

Here's the number which we'll insert to the equation.

                       ( -16 /2  ) = (-8)2  = 64

Notice that we put the minus sign here although it will always drop out after we square things. The cause for this will be clear in a second.  Now let's complete the square.

                                             x2 -16 x + 64 =( x - 8)2

Now, it is a quadratic hopefully that you can factor fairly rapidly.  Though notice that this will always factor as x plus the blue number we calculated above i.e. in the parenthesis (in our case i.e. -8).  This is the cause for leaving the minus sign.  It ensures that we don't commit any mistakes in the factoring procedure.


Related Discussions:- Example of factorable quadratic equation

Word problem pratice Algebra: Functions, The luck dragon that live in the e...

The luck dragon that live in the enchanted Forest weigh 4x pounds when they are x years old. Write a function table that can be used to find the weights of 6-year old, 8-year old,

Rectangular or cartesian coordinate system, Rectangular or Cartesian coordi...

Rectangular or Cartesian coordinate system We will begin with the Rectangular or Cartesian coordinate system.  It is just the standard axis system that we employ when sketching

Facts about function composition, We have to note a couple of things here r...

We have to note a couple of things here regarding function composition.  Primary it is NOT multiplication. Regardless of what the notation may recommend to you it is simply not

Write & Solve Equations, Lisa and Judy read mystery novels. Judy has read ...

Lisa and Judy read mystery novels. Judy has read three fewer than five times as many as Lisa. Equation: J=5L-3 Lisa: Judy:

Substituting values, simplify the following expressions for the given value...

simplify the following expressions for the given values x3 -x2/x2 -x x=3 how do i do this to get answer need step by step instruction

LCD, I dont understand why the least common denominator to the problem (3/2...

I dont understand why the least common denominator to the problem (3/2x) minus (1/2(x+10)) equals 1 is 2x(x+10)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd