Example of factorable quadratic equation, Algebra

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.

Posted Date: 4/6/2013 4:06:20 AM | Location : United States







Related Discussions:- Example of factorable quadratic equation, Assignment Help, Ask Question on Example of factorable quadratic equation, Get Answer, Expert's Help, Example of factorable quadratic equation Discussions

Write discussion on Example of factorable quadratic equation
Your posts are moderated
Related Questions

In this section we will look at exponential & logarithm functions.  Both of these functions are extremely important and have to be understood through anyone who is going on to late

are these like terms

x=4y=12 i dont know how to do this can you please help me??!!


Which shows the quadratic function f(x) = 2(x - 4)2 - 7 in standard form?

The difference of two numbers is 18. The larger number is four more than twice the smaller. What are the numbers?

Properties of f( x ) = b x 1. The graph of f( x ) will always have the point (0,1).  Or put another way, f(0) = 1 in spite of of the value of b. 2. For every possible b b x

find the percent up or down: 75 to 110

what are the solutions of [x+6]_> 5? write the solution as either the union or the intersection of two sets