lekikster lekikster

04-06-2018
Mathematics

contestada

How do I expand the binomial (4x-2y)^4?

Respuesta :

04-06-2018

Hi,
[tex](a+b)^4=a^4+4a^3b+6a^2b^2+4ab^3+b^4\\\\ (4x-2y)^4=2^4(2x-y)^4\\ =16((2x)^4+4*(2x)^3*(-y)+6(2x)^2*(-y)^2+4(2x)*(-y)^3+(-y)^4)\\ =16*(16x^4-32x^3y+24x^2y^2-8xy^3+y^4)\\\\ =256x^4-512x^3y+384x^2 y^2-128xy^3+16y^4[/tex]

Answer Link

Otras preguntas

राम को आम खाता है। translate in english

The fraction 7/4 is known as a

20. Workplace communication can suffer when individualsA. consider cultural differences.B. attempt to engage the audienceC. tailor the message channelD. use tex

Which is the best restatement of the following sentence? Right or wrong, I assumed this ground, and now avow it. I assumed I would make the right decision.

the list price of a stereo is $900 with a trade discount of 30%. Find the amount of trade discount and net price of the stereo.

If AB = AD + DB and AD = AC, then AB = AC + DB because of the

james opened his book with a heart as heavy as

historians have a difficult task, if not all facts have been discovered yet, with doing what?

when powering off your computer is best down using?

a small syringe is used to give a patient 0.23 ml of medication 4 times per day for 4 days. how much medication does he receive over the 4 days