cuddlesxwheretho
cuddlesxwheretho cuddlesxwheretho
  • 24-04-2020
  • Mathematics
contestada

How to add/subtract with polynomial denominators?
He gave us the answer but I don’t know how to solve
:\

How to addsubtract with polynomial denominators He gave us the answer but I dont know how to solve class=

Respuesta :

valleybritney
valleybritney valleybritney
  • 24-04-2020

Answer:

Step-by-step explanation:

  • Cross multiply the numerators by the denominators.

[tex]\frac{5n}{n-2} -\frac{5}{n-1} =\frac{5n(n-1)-5(n-2)}{(n-2)(n-1)}[/tex]

  • Foil out the numerator:

[tex]\frac{5n}{n-2} -\frac{5}{n-1} =\frac{5n(n-1)-5(n-2)}{(n-2)(n-1)}=\frac{5n^{2}-5n-5n+10 }{(n-2)(n-1)}[/tex]

  • Simplify!

Answer Link

Otras preguntas

can someone please explain this to me and give the answer??
Sally has $40,000 to invest some money at 9% interest and the rest at 11%. If her total annual income from these two investments is $4,300, how much does she in
How did bosses and political machines control city governments?
math question thanks if you help!
How were Mesopotamians able to get enough water from the Tigris & Euphrates Rivers during the summer? One sentence Please help me
the three tribes of the yucatan peninsula other than the Aztecs are​
Vita wants to center a towel bar on her door that is 27 inches wide. She determines that the distance from each end of the towel bar to the end of the door is 9
in a race, Usain Bolt accelerates at 1.99m/s^2 for the first 60.0m, then decelerates at -0.266m/s^2 for the final 40.0m. what was his final velocity? (Unit = m/
Arrange these atoms in order of increasing size: [Kr]5s24d105p6; [Kr]5s24d105p1; [Kr]5s24d105p3
what is one third equal to