(k+1) (-1) (K+1)((K+1) + 1) 2 (1)* K (K+1) + (-1)**) (k+1) ² 2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.3: Algebraic Expressions
Problem 79E
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I am confused about the algebra how does line one get manipulated to line two? 

11
(k+1)
(-1) (K+1) ((k+1) + 1)
2
K(K+1) +
(-1)*
2
(-1)²+1 (k+1) ²
2
Transcribed Image Text:11 (k+1) (-1) (K+1) ((k+1) + 1) 2 K(K+1) + (-1)* 2 (-1)²+1 (k+1) ² 2
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