diontna29 diontna29

23-11-2018
Mathematics

contestada

Simplify (3n – 2m)2 = ?

A. 6n2 – 12mn – 4m2 B. 9n2 + 12mn + 4m2 C. 9n2 – 12mn – 4m2 D. 9n2 – 12mn + 4m2. the correct answer is D. 9n2 - 12mn + 4m2

Respuesta :

23-11-2018

(3n-2m) (3n-2m)

(you multiply the first number (3n) by the first number in the 2nd bracket (3n) and then by the second number in the 2nd bracket (-2m)), and you do the same for -2m

9n2 - 6mn -6nm +4m2

9n2 -12mn + 4m2

Answer Link

Mareska95 Mareska95

23-11-2018

Hi!

(3n - 2m)^2 = 9n^2 - 12mn + 4n^2

The correct answer is D. 9n^2 - 12mn + 4n^2

Hope this helps!

Answer Link

Otras preguntas

All of the following were actively involved in securing the right to vote for women except a. Elizabeth Cady Stanton. b. Susan

Which of the following was an effect of colonialism on health? a. Entire native populations in the Americas were wiped out because of exposure to diseases like

Jones has already taken 1 page of notes on his own, and he will take 2 pages during each hour of class. If after 4 hours, he had 9 pages of notes completed, wha

A horizontal spring with spring constant of 9.80 N/m is attached to a block with a mass of 1.20 kg that sits on a frictionless surface. When the block is 0.345

A company issues at par 9% bonds with a par value of $100,000 on April 1. The bonds pay interest semi-annually on January 1 and July 1. How much total cash inte

How is "economic growth" measured? List and describe three ways a government could promote long-term economic growth. In what way is a college degree a form of

The enrichment model offers the following advantage to students who are gifted: The major part of the day is spent in the regular classroom where students exper

Calculate the force of gravity a newborn baby of mass 3.0 kg and the obstetrician of mass 100.0 kg exert on each other when the distance between them is 0.5 m.

_____________ the process by which community groups are helped to identify common problems or goals, mobilize resources, and in other ways develop and implement

A Solutions Architect notices slower response times from an application. The CloudWatch metrics on the MySQL RDS indicate Read IOPS are high and fluctuate signi