Algebraïese breuke - maal & deel

Re: Algebraïese breuke

by Marna Zuhlsdorff -
Number of replies: 0
Hi Bianca

Baie dankie vir jou vraag en bewerking. 
Hierdie vraag gaan natuurlik oor breuke met faktorisering - click hier as jy weer na die videos wil kyk.

Jou enigste fout hier net daardie 2 wat jy by die faktorisering van vergeet het...hierdie somme kan nogals deurmekaar raak, ne?
Daar is 'n tussen stap "vereenvoudig" wat jy kan neerskryf voordat jy die uitkansellering doen - dis bietjie ekstra skryfwerk, maar ek het gevind ek maak minder foute as ek dit eers neerskryf.

Probeer dit bietjie en kyk of dit vir jou ook 'n verskil maak.

Marna

table row cell fraction numerator 3 x minus 6 over denominator 4 x squared minus 1 end fraction divided by fraction numerator 9 x minus 18 over denominator 6 x minus 3 end fraction cross times fraction numerator 4 x squared plus 2 x over denominator 4 x end fraction end cell blank blank row cell equals fraction numerator 3 open parentheses x minus 2 close parentheses over denominator open parentheses 2 x minus 1 close parentheses open parentheses 2 x plus 1 close parentheses end fraction divided by fraction numerator 9 open parentheses x minus 2 close parentheses over denominator 3 open parentheses 2 x minus 1 close parentheses end fraction cross times fraction numerator 2 x open parentheses 2 x plus 1 close parentheses over denominator 4 x end fraction end cell blank Faktoriseer row cell equals fraction numerator 3 open parentheses x minus 2 close parentheses over denominator open parentheses 2 x minus 1 close parentheses open parentheses 2 x plus 1 close parentheses end fraction cross times fraction numerator 3 open parentheses 2 x minus 1 close parentheses over denominator 9 open parentheses x minus 2 close parentheses end fraction cross times fraction numerator 2 x open parentheses 2 x plus 1 close parentheses over denominator 4 x end fraction end cell blank cell apostrophe flip space en space maal apostrophe end cell row cell equals fraction numerator 3.3.2 x open parentheses x minus 2 close parentheses open parentheses 2 x minus 1 close parentheses open parentheses 2 x plus 1 close parentheses over denominator 9.4 x open parentheses 2 x minus 1 close parentheses open parentheses 2 x plus 1 close parentheses open parentheses x minus 2 close parentheses end fraction end cell blank Vereenvoudig row cell equals fraction numerator 18 x open parentheses x minus 2 close parentheses open parentheses 2 x minus 1 close parentheses open parentheses 2 x plus 1 close parentheses over denominator 36 x open parentheses 2 x minus 1 close parentheses open parentheses 2 x plus 1 close parentheses open parentheses x minus 2 close parentheses end fraction end cell blank Vereenvoudig row cell equals fraction numerator 18 up diagonal strike x up diagonal strike open parentheses x minus 2 close parentheses end strike up diagonal strike open parentheses 2 x minus 1 close parentheses end strike up diagonal strike open parentheses 2 x plus 1 close parentheses end strike over denominator 36 up diagonal strike x up diagonal strike open parentheses 2 x minus 1 close parentheses end strike up diagonal strike open parentheses 2 x plus 1 close parentheses end strike up diagonal strike open parentheses x minus 2 close parentheses end strike end fraction end cell blank Kanselleer row cell equals 1 half end cell blank blank end table