Video: Dab tsi yog qhov txawv ntawm ob polynomials?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Yog, lub qhov sib txawv ntawm ob polynomials yog ib txwm ib polynomial . Ntxiv mus, ib qho kev sib xyaw ua ke ntawm ob (los yog ntau tshaj) polynomials yog a polynomial . Tib yam muaj tseeb rau ib qho kev sib txuas ntawm ob peb polynomials thiab thaum lawv muaj ntau qhov sib txawv.
Hauv qhov no, puas yog cov lej ntawm 2 polynomials ib txwm yog polynomial?
Cov sum ntawm ob polynomials yog ib txwm ib tug polynomial , yog li qhov sib txawv ntawm ob polynomials kuj yog ib txwm ib tug polynomial.
Tsis tas li ntawd, koj piav qhia txog polynomials li cas? Hauv lej, a polynomial yog ib qho kev qhia uas muaj cov variables (tseem hu ua indeterminates) thiab coefficients, uas tsuas yog kev khiav hauj lwm ntawm kev ntxiv, rho tawm, sib npaug, thiab tsis yog qhov tsis zoo ntawm cov lej exponent ntawm qhov sib txawv.
Tsuas yog li ntawd, qhov txawv ntawm 2 cubes yog dab tsi?
Qhov sib txawv ntawm ob lub qauv yog nyob rau hauv qhov chaw ntawm qhov "tshem tawm" kos npe: Rau lub txawv ntawm kub , lub cim "tshem tawm" mus rau hauv qhov linear factor, a – b; rau sum kub , lub cim "minus" mus rau hauv lub quadratic yam, a 2 – ab + b 2.
Thaum ob polynomials yog multiplied cov khoom yog ib txwm ib tug polynomial?
Tseeb: lub khoom ntawm ob polynomials yuav a polynomial tsis hais txog cov cim qhia ntawm tus thawj coefficients ntawm lub polynomials . Thaum ob polynomials tau muab faib , txhua lub sij hawm ntawm thawj polynomial yog multiplied los ntawm txhua lub sij hawm ntawm qhov thib ob polynomial.
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