VRAE oor vraestel 1: Verhoudings

Re: Verhoudings

by Marna Zuhlsdorff - Thursday, 20 February 2020, 2:18 AM

Hi Zhanmari

Dankie vir jou bewerking.
Jy het nie die vraag aangeheg nie, maar ek neem aan dit was iets soos $V e r e e n v o u d i g space fraction numerator open parentheses x plus 1 close parentheses squared minus 2 x minus 2 over denominator x squared minus x minus 2 end fraction$ ?

Die woord 'vereenvoudig' is vir jou 'n clue dat jy moet faktoriseer - so probeer dit eerste.

$table attributes columnalign left left left center left end attributes row cell space space space fraction numerator open parentheses x plus 1 close parentheses squared minus 2 x minus 2 over denominator x squared minus x minus 2 end fraction end cell blank blank blank blank row cell equals fraction numerator open parentheses x plus 1 close parentheses squared minus 2 open parentheses x plus 1 close parentheses over denominator open parentheses x minus 2 close parentheses open parentheses x plus 1 close parentheses end fraction end cell blank blank blank cell GGF space bo space en space kwadratiese space drieterm space onder end cell row cell equals fraction numerator open parentheses x plus 1 close parentheses open square brackets open parentheses x plus 1 close parentheses minus 2 close square brackets over denominator open parentheses x minus 2 close parentheses open parentheses x plus 1 close parentheses end fraction end cell blank blank blank cell Groepering space bo end cell row cell equals fraction numerator open parentheses x plus 1 close parentheses open square brackets x minus 1 close square brackets over denominator open parentheses x minus 2 close parentheses open parentheses x plus 1 close parentheses end fraction end cell blank blank blank Vereenvoudig row cell equals fraction numerator up diagonal strike open parentheses x plus 1 close parentheses end strike open parentheses x minus 1 close parentheses over denominator open parentheses x minus 2 close parentheses up diagonal strike open parentheses x plus 1 close parentheses end strike end fraction end cell blank blank blank Kanselleer row cell equals fraction numerator open parentheses x minus 1 close parentheses over denominator open parentheses x minus 2 close parentheses end fraction end cell blank blank blank blank end table$

Jou manier - om eers die hakies uit te maal, sal soms werk, en ek dink jy sou die som reggekry het as jy nie die skryffout gemaak het nie. Sou jy onthou het om te faktoriseer?

$table attributes columnalign left end attributes row cell space space space space fraction numerator open parentheses x plus 1 close parentheses squared minus 2 x minus 2 over denominator x squared minus x minus 2 end fraction end cell blank blank blank row cell equals fraction numerator open parentheses x plus 1 close parentheses open parentheses x plus 1 close parentheses minus 2 x minus 2 over denominator x squared minus x minus 2 end fraction end cell blank blank blank row cell equals fraction numerator x squared plus 2 x plus 1 minus 2 x minus 2 over denominator x squared minus x minus 2 end fraction end cell blank blank cell Maal space hakies space uit end cell row cell equals fraction numerator x squared minus 1 over denominator x squared minus x minus 2 end fraction end cell blank blank Vereenvoudig row cell equals fraction numerator open parentheses x plus 1 close parentheses open parentheses x minus 1 close parentheses over denominator open parentheses x minus 2 close parentheses open parentheses x plus 1 close parentheses end fraction end cell blank blank cell Verskil space in space vierkante space bo space & space kwadratiese space drieterm space onder end cell row cell equals fraction numerator up diagonal strike open parentheses x plus 1 close parentheses end strike open parentheses x minus 1 close parentheses over denominator open parentheses x minus 2 close parentheses up diagonal strike open parentheses x plus 1 close parentheses end strike end fraction end cell blank blank cell Kanselleer space uit end cell row cell equals fraction numerator open parentheses x minus 1 close parentheses over denominator open parentheses x minus 2 close parentheses end fraction end cell blank blank blank end table$

Maak dit sin?

Groete
Marna