Multiply the polynomials, Mathematics

Assignment Help:

Multiply following.

(a) (4x2-x)(6-3x)

(b) (2x+6)2

Solution

 (a) (4x2 - x )(6 - 3x )

Again we will only FOIL this one out.

(4x2  - x )(6 - 3x) = 24x2 -12x3 - 6x + 3x2 = -12x3 + 27 x2 - 6x

 (b) (2x+6)2

Now recall that 42 = ( 4)( 4)= 16 .  Squaring with polynomials works the same way.  Thus in this case we have,

( 2x + 6)2  = ( 2 x + 6) ( 2 x+ 6) = 4x2 + 12x + 12x + 36= 4x2 +24x + 36

Following are example of some formula

 ( a + b ) ( a - b ) = a2 - b2

( a + b )2  = a2 + 2ab + b2

( a - b )2  = a2 - 2ab + b2

Be careful to not make the following mistakes!

(a + b) 2 ≠ a2 + b2

(a - b )2  ≠ a2  - b2

These are very common mistakes that students often make while they start first learning how to multiply polynomials.


Related Discussions:- Multiply the polynomials

Finding length and height with volume and width?, I figured out the volume ...

I figured out the volume and the width, but I have no idea how to use that information to get the height and the length!

Find out the value of the subsequent summation, Using the formulas and prop...

Using the formulas and properties from above find out the value of the subsequent summation. c The first thing that we require to do here is square out the stuff being summe

Calculate combinations and permutations, a. Cassie has seven skirts, five b...

a. Cassie has seven skirts, five blouses, and ten pairs of shoes. How many possible outfits can she wear? b. Cassie decides that four of her skirts should not be worn to school.

Lower than average, A local police precinct has seen a recent enhance in th...

A local police precinct has seen a recent enhance in the number of complaints filed regarding how officers are interacting with the public. Before addressing the issue, the command

Linear independence and dependence, It is not the first time that we've loo...

It is not the first time that we've looked this topic. We also considered linear independence and linear dependence back while we were looking at second order differential equation

Find an example of congruential unit random number generator, 1. Suppose th...

1. Suppose the arrival times of phone calls in a help centre follow a Poisson process with rate 20 per hour (so the inter-arrival times are independent exponential random variables

Solving problem with linear function, An electric utility company determine...

An electric utility company determines the monthly bill for a residential customer by adding an energy charge of 5.72 cents per kilowatt-hour to its base charge of $16.35 per month

List some maths activities-tasks-exercises for children, List some activiti...

List some activities/tasks/exercises that you would give a class of 50 children to do to make them aware about patterns, and to articulate what the patterns are. You must be won

Geometry, prove angle MJL is congruent to angle KNL

prove angle MJL is congruent to angle KNL

what fill amount are they searching, Brewery has 12 oz bottle filling mach...

Brewery has 12 oz bottle filling machines.  Amount poured by machine is normal distribution mean 12.39 oz  SD 0.04 oz. Company is interested in in reducing the amount of extra beer

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