Ib kab kab sib npaug feem ntau muaj ib qho kev daws teeb meem, tab sis qee zaum nws tsis tuaj yeem muaj kev daws teeb meem (kab kab sib txuas) lossis kev daws tsis kawg (ib kab). Kab lus no tshuaj xyuas tag nrho peb qhov xwm txheej. Ib qho kev daws teeb meem. Lub kaw lus ntawm kab sib npaug muaj ib qho kev daws teeb meem thaum cov duab sib tshuam ntawm ib qho taw tes.
Puas qhov sib npaug tsis muaj kev daws teeb meem?
No daws yuav txhais tau tsis muaj lus teb rau kab zauv. Nws yog tsis yooj yim sua rau qhov sib npaug kom muaj tseeb txawm li cas los xij tus nqi peb muab rau qhov sib txawv. Cov kev daws teeb meem tsis kawg yuav txhais tau tias txhua tus nqi rau qhov sib txawv yuav ua rau qhov sib npaug muaj tseeb.
Yuav ua li cas koj thiaj paub yog qhov sib npaug muaj kev daws teeb meem?
Thaum pom muaj pes tsawg qhov kev daws teeb meem koj yuav tsum tau saib ntawm qhov tsis tu ncua thiab coefficients. Cov coefficients yog cov lej nrog rau qhov sib txawv. … Yog hais tias cov coefficients zoo ib yam ntawm ob sab ces ob sab yuav tsis sib npaug, yog li tsis muaj kev daws teeb meem yuav tshwm sim.
Puas sib npaug thiab daws tib yam?
Ob txoj kev sib npaug sib npaug yog tias lawv muaj tib txoj kev daws teeb meem. … Hauv qhov sib piv, peb tuaj yeem paub tseeb tias ob txoj kab sib npaug tsis sib npaug yog tias peb paub tias qhov kev daws teeb meem ntawm ib qho tsis yog kev daws teeb meem ntawm lwm qhov.
Ib qho piv txwv ntawm kev daws qhov sib npaug yog dab tsi?
Kev daws rau qhov sib npaug yog tus lej uas tuaj yeem txuas rau qhov sib txawv los ua tus lej tseeb. 3(2)+5=11, uas hais tias6+5=11; qhov tseeb! Yog li 2 yog kev daws teeb meem. Qhov tseeb, 2 yog tib txoj kev daws teeb meem rau 3x + 5=11.
