abbyz0603 abbyz0603

14-12-2020
Mathematics

contestada

How would you factor a^3 - b^3? Please leave detailed instructions. Thanks so much!

Respuesta :

LammettHash LammettHash

14-12-2020

a³ - b³ = (a - b) (a² + ab + b²)

You can see why this works if you expand the right side as

a (a² + ab + b²) - b (a² + ab + b²)

(a³ + a²b + ab²) - (a²b + ab² + b³)

Both the a²b and ab² terms cancel, leaving you with a³ - b³.

Answer Link

Otras preguntas

How do I work this problem out 16x to the 5th power-36x to the 4th power+14x to the 3rd power

Solve using the order of operations: 6.3 7 squared x 3.1

Miguel has one foot of string.he cuts the string into fourths.how many inches is each piece of string.

How do you write it in ✋?

Please help and explain fast

To determine the speed of a wave, you would use which of the following formulas? a. speed = wavelength x period b. speed = wavelength x frequency c. speed =

How many liters of 0.1107 M KCI contains 15.00 g of KCI (FW= 74.6 g/mol)

Escoge la respuesta correcta. ¿Cuál describe una persona mala? Question 4 options: trabajador honesto egoísta fiel

Please help with German

What type of elements would companies want to mine for in space? What are some of the elements used for?