Cov txheej txheem:

Vim li cas nws tseem ceeb kom ua kom yooj yim cov lus qhia ua ntej sib faib lossis faib?
Vim li cas nws tseem ceeb kom ua kom yooj yim cov lus qhia ua ntej sib faib lossis faib?

Video: Vim li cas nws tseem ceeb kom ua kom yooj yim cov lus qhia ua ntej sib faib lossis faib?

Video: Vim li cas nws tseem ceeb kom ua kom yooj yim cov lus qhia ua ntej sib faib lossis faib?
Video: xib hwb vam txoov lis 2024, Kaum ib hlis
Anonim

Simplifying rational expressions yuav ua rau cov kev suav ntxiv yooj yim dua vim tias qhov sib txawv ua haujlwm nrog feem ntau yuav me dua. Txhawm rau txiav txim siab tias a rational qhia yog nyob rau hauv daim ntawv yooj yim peb yuav tsum xyuas kom meej tias tus lej thiab tus denominator tsis muaj qhov sib txawv.

Tsis tas li ntawd, koj yuav ua li cas yooj yim cov lus qhia muaj txiaj ntsig nrog kev sib npaug thiab sib faib?

Q thiab S tsis sib npaug 0

  1. Kauj Ruam 1: Factor ob tus lej thiab tus lej.
  2. Kauj Ruam 2: Sau ua ib feem.
  3. Kauj Ruam 3: Ua kom yooj yim rau cov lus qhia muaj nuj nqis.
  4. Kauj Ruam 4: Muab ntau yam tseem ceeb hauv tus lej thiab / lossis tus lej.
  5. Kauj Ruam 1: Factor ob tus lej thiab tus lej.
  6. Kauj Ruam 2: Sau ua ib feem.

Tsis tas li ntawd, koj yuav ua li cas yooj yim rau kev qhia txog kev xav? A rational qhia raug suav hais tias yooj yim yog tias tus lej thiab tus lej tsis muaj qhov sib xws.

  1. Kauj Ruam 1: Qhia tus lej thiab tus lej.
  2. Kauj Ruam 2: Sau cov nqi txwv.
  3. Kauj Ruam 3: Ncua tseg yam tseem ceeb.
  4. Kauj Ruam 4: Ua kom yooj yim thiab nco ntsoov cov txiaj ntsig txwv tsis tau hais los ntawm kev qhia.

Kuj Paub, thaum faib ob txoj kev qhia txog kev xav koj yuav tsum ua dab tsi ua ntej?

Kauj Ruam 1: Ua tiav tag nrho cov lej thiab tus lej ntawm txhua feem. Kauj ruam 2: Hloov cov kev faib kos npe rau ib qho kev sib faib kos npe thiab tig (los yog rov ua dua) cov feem tom qab kev faib kos npe; qhov tseem ceeb koj yuav tsum muab sib npaug los ntawm qhov sib txuam. Kauj Ruam 3: Ncua tseg lossis txo cov feem.

Yuav ua li cas koj daws cov lus qhia muaj nuj nqis nrog kev ua haujlwm?

Kev ua haujlwm ntawm kev hais lus zoo

  1. Sib faib thiab faib cov lus qhia muaj nuj nqis.
  2. Ntxiv thiab rho tawm cov lus qhia rational. Ntxiv thiab rho tawm cov lus qhia muaj tseeb nrog zoo li tus lej. Ntxiv thiab rho tawm cov lus qhia tsis zoo uas tsis zoo li tus lej siv tus lej loj tshaj plaws. Ntxiv thiab rho tawm cov lus qhia uas muaj feem cuam tshuam uas tsis muaj feem ntau.

Pom zoo: