leighannmfral leighannmfral

03-01-2019
Mathematics

contestada

Use the identity a^3+b^3=(a+b)^3−3ab(a+b) to determine the sum of the cubes of two numbers if the sum of the two numbers is 4 and the product of the two numbers is 1.

Respuesta :

03-01-2019

[tex]a^3+b^3=(a+b)^3-3ab(a+b)\\\\a+b=4,\ ab=1\\\\\text{Substitute:}\\\\a^3+b^3=(4)^3-3(1)(4)=64-12=52[/tex]

Answer Link

Otras preguntas

Write 0.24 repeating as a fraction in simplest form.

what is the distributive property for 72 +12

What is time dilation? Is that a thing only in the movies? I need a good explanation that is simple enough for me

PLEASE HELP ME PRESS THE IMAGE ABOVE

A group of scientists records the amount of local rainfall per month over a period of 10 years. Which kind of graph would be most useful to show this data? bar

Find the distance d(A,B) between points A and B. A(4,-5) ; B(4,3) SIMPLIFY YOUR ANSWER TYPE AN EXACT ANSWER USING RADICALS AS NEEDED

PLEASE HELP MEEEE!!!!!

a cause and effect relationship is implied when evidence of a true cause and effect relationship has not been established. How do we establish a contributory ca

a 2 liter bottle of soda has how many milliliter in it?

Solve the inequality 2(x - 5) - 7x < -25