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Dab tsi yog cov kauj ruam ntawm kev daws qhov sib npaug?
Dab tsi yog cov kauj ruam ntawm kev daws qhov sib npaug?

Video: Dab tsi yog cov kauj ruam ntawm kev daws qhov sib npaug?

Video: Dab tsi yog cov kauj ruam ntawm kev daws qhov sib npaug?
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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.

  1. x/5 + 7 = -3 =
  2. (x/5 + 7) - 7 = -3 - 7 =
  3. x/5 = -10.
  4. x/5 = 10*5.
  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)

  1. 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.
  2. 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.

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