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

Asymptotes, There are also two lines on each of the graph. These lines are ...

There are also two lines on each of the graph. These lines are called asymptotes and as the graphs illustrates as we make x large (in both the +ve and -ve sense) the graph of the h

Algerbra.., ??2+??2+16??-18??+145=25 Standard form (x-h)^2 +(y-k)^2 k (x...

??2+??2+16??-18??+145=25 Standard form (x-h)^2 +(y-k)^2 k (x^2+16x+64)^2+(y^2-18y+81)^2=25 (x+8)^2+(y-9)^2=120 (h,k)=(8,-9) R=5 Intercepts

Armt math blitz, what is the reciprocal of 4 over 3 .

what is the reciprocal of 4 over 3 .

Solve equations with more than one variable, Solve   A= P (1 + rt ) for r. ...

Solve   A= P (1 + rt ) for r. Solution Here is an expression in the form,                             r = Equation involving numbers, A, P, and t In other terms, th

Equivalent Ratios and Graphs, A car travels at a rate of 50 miles per hour....

A car travels at a rate of 50 miles per hour.Use equivalent ratios to graph the distance the car travels over time.Graph time on the x-axis and distance on the y-axis

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?

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