perplexus.info :: Just Math : Septic Factorization

Septic Factorization (Posted on 2015-06-07)

Factorize: (a+b)⁷ - a⁷ - b⁷

Note: For an extra challenge, solve this puzzle without the aid of a computer program or an online calculator.

Submitted by K Sengupta

Rating: 4.0000 (1 votes)

Solution: (Hide)

(a+b)^7-a^7-b^7=7ab(a+b)(a^2+ab+b^2)^2
For an explanation, refer to the solution submitted by Daniel in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
another approach	Daniel	2015-06-08 11:47:38
re: Correction, presumably not fully factored	JayDeeKay	2015-06-08 10:58:39
No Subject	Benny	2015-06-07 19:49:33
Correction, presumably not fully factored	Steve Herman	2015-06-07 19:38:08
Solution	JayDeeKay	2015-06-07 15:52:11

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