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

Financial Polynomials, need step by step instructions on solving P = $500 a...

need step by step instructions on solving P = $500 and r = 11% = .11

Geomtetic shapes, Find the surface area of a cylinder with a base radius of...

Find the surface area of a cylinder with a base radius of 3 cm and a height of 8 cm. Write your answer in terms of 3.14, and be sure to include the correct unit.

Quadratic equation, I am trying to find the answer to y=x^2+12x-11 Would y...

I am trying to find the answer to y=x^2+12x-11 Would you help me

Equation of a line perpendicual to the given line , what is the equation of...

what is the equation of a line perpendicular to the given line y=-x+3;(-2,-2) but passing through the given point?

Logarithms, Log(8)10 Find the approximation and exact value. log(5)317 Fi...

Log(8)10 Find the approximation and exact value. log(5)317 Find the approximation and exact value

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