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

Why did the Mexican people felt driven to rebellion in the early part of the twentieth century. Was the revolution successful?

match the hurricane season national threat levels

The angle measure of thre angle of a triangle are p, q and r. Angle measure of q is one third of p and r is the difference of p and q.

Write the equations after translating the graph of y=|2x|−1: one unit up

which of the following expressions are equivalent? Justify your reasoning.

i need to know where,when,and the setting of the book Anne frank (autobiogrofised)

what is the volume of the prism below length 14 width 7 height 4

Assess how women are treated under strict understanding of sharia law.

An object is thrown upward. at the moment when it has reached the top of its path and its velocity is zero, the acceleration is

at a price of 4.89 per pound, what is the cost 3.95 pounds of deluxe mixed nuts?