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Video: Dab tsi yog cov kauj ruam ntawm kev daws qhov sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau daws ob kauj ruam algebraic equation , txhua yam koj yuav tsum ua yog cais cov sib txawv los ntawm kev siv qhov sib ntxiv, rho tawm, sib faib, lossis faib.
daws qhov sib npaug ob kauj ruam los ntawm kev sib npaug ntawm qhov kawg es tsis txhob faib.
- x/5 + 7 = -3 =
- (x/5 + 7) - 7 = -3 - 7 =
- x/5 = -10.
- x/5 = 10*5.
- x = -50.
Ntxiv rau qhov no, 4 kauj ruam los daws qhov sib npaug yog dab tsi?
A 4-Step Guide to Solving Equations (Part 2)
- Kauj Ruam 1: Simplify txhua sab ntawm qhov sib npaug. Raws li peb tau kawm dhau los, thawj kauj ruam ntawm kev daws qhov sib npaug yog ua kom qhov sib npaug yooj yim li sai tau.
- Kauj Ruam 2: Hloov pauv hloov mus rau ib sab.
Ib tug kuj yuav nug, dab tsi yog qhov kev txiav txim ntawm kev daws teeb meem? Qhov tseem ceeb tshaj plaws yog koj lub npe, tom qab ntawd tus lej, ua raws li kev sib faib thiab faib, thiab thaum kawg ntxiv thiab rho tawm (PEMDAS).
Tsis tas li ntawd, txoj cai golden rau kev daws qhov sib npaug yog dab tsi?
Ua ntej nws yuav tsum tau hais, tias thaum twg daws rau qhov tsis paub hloov pauv hauv ib qho kev sib npaug , koj yuav tsum sim kom tau 0 ntawm sab nrog qhov tsis paub sib txawv hauv qhov sib ntxiv / rho tawm (thiab tau txais 1 hauv qhov sib npaug / faib).
Coefficients yog dab tsi?
Hauv lej, a coefficient yog ib qho kev sib txuam hauv qee lub sij hawm ntawm polynomial, series, lossis ib qho kev qhia; nws feem ntau yog tus lej, tab sis tej zaum yuav yog ib qho kev qhia. Piv txwv li, yog tias y raug suav tias yog ib qho parameter hauv cov lus hais saum toj no, qhov coefficient ntawm x yog −3y, thiab qhov tsis tu ncua coefficient yog 1.5 + y.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Kev daws qhov sib npaug sib npaug yog dab tsi?
A rational equation Ib qho kev sib npaug uas muaj tsawg kawg yog ib qho kev qhia rational. yog ib qho kev sib npaug uas muaj tsawg kawg yog ib qho kev qhia rational. Kev daws qhov sib npaug sib npaug los ntawm kev tshem cov feem ntau los ntawm kev sib faib ob sab ntawm qhov sib npaug los ntawm qhov tsawg tshaj plaws denominator (LCD). Piv txwv 1: daws: 5x− 13 = 1x 5 x − 1 3 = 1x
Dab tsi yog cov kauj ruam los daws qhov tsis sib xws ntawm ob kauj ruam?
Nws yuav siv ob kauj ruam los daws qhov kev sib npaug lossis qhov tsis sib xws uas muaj ntau tshaj ib qho kev ua haujlwm: Simplify siv qhov sib txawv ntawm qhov sib ntxiv lossis rho tawm. Ua kom yooj yim ntxiv los ntawm kev siv qhov sib txawv ntawm qhov sib npaug lossis faib
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no