Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

$https://latex.codecogs.com/png.image?\dpi{110}\large \frac{1}{x^2+2x+1}\: \textbf{:}\; \frac{1}{x^2-1} =$	A. 1
	B. − 1
	C. x − 1
	D. $\large \boldsymbol{ \frac {x} {x\,-\,1} }$
	E. $\large \boldsymbol{ \frac {x\,-\,1} {x\,+\,1} }$

[ 1223 - op net sinds 7.8.12-(E)-3.11.2023 ]

Translation in E N G L I S H

see above

Oplossing - Solution

$https://latex.codecogs.com/png.image?\dpi{110}\fn_cm&space;\large \frac{1}{x^2+2x+1}\: \textbf{:}\; \frac{1}{x^2-1} = \frac{1}{(x+1)^2}.(x-1)(x+1)=\frac{x-1}{x+1}$