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quickstudent
 one year ago
Can someone please help me with this?
factoring a sum of cubes
quickstudent
 one year ago
Can someone please help me with this? factoring a sum of cubes

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quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1How am I supposed to write the expression here?

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2One of the cubes has an edge of 1 and the other has an edge of x. As given in the problem, the volume of a cube is length times width times height. Because all those measures are the same in a cube, the volume of a cube is the cube of the measure of one of its edges.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2Cube I with edge of l foot has volume 1*1*1 = 1 cubic foot. Cube 2 with edge x has volume x*x*x = x^3 cubic feet.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2Total volume = 1 + x^3 or V = x^3 + 1. @quickstudent The title of the thread is factoring a sum of cubes. Is there another part to this?

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1Yes, there is. Here's the whole question.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2To factor x^3 + 1, take a look at the attached pattern for doing that.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2Follow the pattern of the first one which is the sum of two cubes.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2Be brave and see what you can do. x^3 + 1 = (x + 1) * ( ?  ? + ?)

quickstudent
 one year ago
Best ResponseYou've already chosen the best response.1Okay, this is what I got now

Directrix
 one year ago
Best ResponseYou've already chosen the best response.2@quickstudent Looks good.
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