andreev9039 andreev9039
  • 23-06-2018
  • Mathematics
contestada

2mn + 4n 2 and 5m 2 - 7mn

answers at bottom
1) 9m2 + 9mn - 4n2
2) 5m2 - 14mn - 4n2
3) 5m2 - 5mn + 4n2
4) 5m2 + 5mn - 4n2

Relax

Respuesta :

gmany
gmany gmany
  • 28-06-2018

[tex](2mn+4n^2)+(5m^2-7mn)\\\\=2mn+4n^2+5m^2-7mn\qquad\text{combine like terms}\\\\=5m^2+(2mn-7mn)+4n^2\\\\=\boxed{5m^2-5mn+4n^2}\to 3)[/tex]

Answer Link

Otras preguntas

How long does it take to build a blimp? How has a blimp helped the world? When did Henri Giffard start and finish building his blimp? When did Renard and Krebs
What is 15/100 in simplest form
A horizontal force of 200N is applied to a 55kg cart across a 10m level surface. If the cart accelerates at 2.0m/s^2, then what is the work done by the force o
Is glass biotic or abiotic
Which group wanted Hayes to remove troops from the South?
which layer of the earth is where weather occurs
is adding food coloring and oil into water is it a chemical or physical change?
nine months is what percent of a year
What is it called when the audience know something the characters don't?
1/4x+3/4y=1 graph linear equation