algebra 8 klass (2019 god)

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algebra y i 3 . . 1 - 1 o 4 ' x t t t - ya a x 2 + x + s = o sh. a. alimov, o. r. xolmuxamedov, m. a. mirzaaxmedov a l g e b r a uchebnik dlya 8 klassov srednix obsheobrazovatelnix shkol izdanie chetvertoe, pererabotannoe i dopolnennoe rekomendovan ministerstvom narodnogo obrazovaniya respubliki uzbekistan izdatelsko-poligraficheskiy tvorcheskiy dom “q‘qituvchi” tashkent-2019 udk 512(075.3)=161.1 bbk 22.14ya72 a 45 g. p. muxamedova - n.sh. karshibaeva - m.m. shaniyazova - i.b.soibova - b.o. urinbaeva - retsenzenti: dotsent kafedri obsh ey matematiki tgpu im. nizami; metodist uchebno-metodicheskogo upravleniya tgpu im. nizami; prepodavatel matematiki shkoli №300 sergepiyskogo rayona goroda tashkent; prepodavatel matematiki spetsializirovannoy shkoli №307 yashnabadskogo rayona goroda tashkent; prepodavatel matematiki spetsializirovannoy shkoli № 6 sergepiyskogo rayona goroda tashkent. a a uslovnie znaki, privedyonnie v uchebnike ■ nachalo resheniya zadachi - konets resheniya zadachi - nachalo obosnovaniya matematicheskogo dokazatelstva ili …

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=40, i=16; 4) g = ̂ a6y, gde a=30, 6=20, /g=25. 2. raskroyte skobki i uprostite: 1) 7 a - (5 a + 46); 2) 9 x -(7 ;u -4x ); 3) - (2 a -3 6 ) - ( - a + 36); 4) 8x - (z.u + 5x) - (-2j> - x). 3. naydite chislovoe znachenie virajeniya ^ = esli: 1) v = 60; 2) v = 75; 3 )v = 90; 4) v = 100; 5) v = 20,4; 6) v = 28,5. 4. za kajdiy pravilniy otvet po russkomu yaziku i literature nachislyaetsya p ballov, po matematike - k ballov, po angliyskomu yaziku - t ballov. nadira otvetila na s voprosov po russkomu yaziku i literature, na a voprosov po matematike, na 6 voprosov po angliyskomu yaziku. 1) sostavte virajenie dlya podschyota obshego chisla ballov, nabrannix nadiroy; 2) skolko ballov ona nabrala, esli a=35, 6 = …

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$sax; 2) r sekundax; 3) t chasax, / minutax i r sekundax? 5. naydite utroennuyu raznost chisel x i u . naydite chislovoe zna chenie etogo virajeniya pri: 1) x = - 0,37,*^ = -0,42; 2) x±-£9v, y3t-4,48; 3) 4) *= •§. u = - 0,7 6. zapishite proizvedenie summi i raznosti chisel x i u. naydite chislovoe znachenie poluchennogo virajeniya, esli: 2) 3) jc = 0,15, u = —0,75; 4) x = 1,32, .u = —1,28 • g--------------------------------------- 9 naydite chislovoe znachenie algebraicheskogo virajeniya (7-8): p — k ('r + \)-2r 1 /7-/ + - , gde | = / = 1. 4 t = ~. 5 9. naydite znachenie i pri k= o, &= 1, k=7, k - 10, polzuyas formuloy nechetnogo chisla p=2k+\. 10. zapishite v vide algebraicheskogo virajeniya: 1) summu dvux posledovatelnix naturalnix chisel, menshee iz kotorix ravno p; 2) proizvedenie dvux posledovatelnix naturalnix chisel, bolshee …$

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$i ----j 5 -45 .ch 2 2a sh 3>~ i ta’ 4) 3 2a 1' lab lab1 sokratite drob (30—45): oo i vo «/"v 1 1 1 1 ) — ■ ' 20 ’ 8 ac 2 5 > ^ ; 2a 1) — ; a 63 . 2 > 7 ’ 5 ya 3 ) — >a b 6 4 > 7 ' 6ab i ) — ; j 4 a 14c 2 ) — ; 7 49c ' a' 4 ) 9 » ! ’ 12a v 5 ) z ' 18a 6 4(ti+l) 34* l a (a—b) 2>7 r 16 ----------------- 2b (m—n) ^ 8b (m—n) {m—n) ’ 3 a (a+b) ^ 9a (a+6) (a—b) > m — n 5 ) “ “ i 2 2 m —n 3) 3) 6) -121 55 lb . 216 ’ 7i + i a + 36 —2* 2a + 26 …$

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rivedite drobi 'a' — j i - — bab 4as k obshemu znamenatelyu. a obshiy znamenatel etix drobey doljen delitsya na znamenatel kajdoy drobi. sledovatelno, on doljen delitsya na 3, 6, 4, to est na 12; na a2, a, to est na a2; na ' i '2’ to est na 2; na s. 18 --------------------------------------------------------------------------------------------------------- • takim obrazom, jj obshiy znamenatel drobey doljen soderjat mnojiteli 12, a2, '2 i s. dostatochno vzyat v kachestve obshego znamenatelya proizvedenie 12a22s. razdeliv obshiy znamenatel na znamenatel pervoy drobi, naydem odnochlen, na kotoriy nado umnojit chislitel i znamenatel etoy drobi. etot odnochlen nazivayut dopolnitelnim mnojitelem drobi. dlya pervoy drobi on raven 4's. analogichno naxodim dopolnitelnie mnojiteli dlya vtoroy i tretey drobey: 2a s i 'a'1. umnojiv chislitel i znamenatel pervoy, vtoroy i tretey drobey sootvetstvenno na 4's, 2a s i 'a'2, privodim ix k obshemu znamenatelyu 12 a22s: 2t _ 4 t's p _ …

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algebra y i 3 . . 1 - 1 o 4 ' x t t t - ya a x 2 + x + s = o sh. a. alimov, o. r. xolmuxamedov, m. a. mirzaaxmedov a l g e b r a uchebnik dlya 8 klassov srednix obsheobrazovatelnix shkol izdanie chetvertoe, pererabotannoe i dopolnennoe rekomendovan ministerstvom narodnogo obrazovaniya respubliki uzbekistan izdatelsko-poligraficheskiy tvorcheskiy dom “q‘qituvchi” tashkent-2019 udk 512(075.3)=161.1 bbk 22.14ya72 a 45 g. p. muxamedova - n.sh. karshibaeva - m.m. shaniyazova - i.b.soibova - b.o. urinbaeva - retsenzenti: dotsent kafedri obsh ey matematiki tgpu im. nizami; metodist uchebno-metodicheskogo upravleniya tgpu im. nizami; prepodavatel matematiki shkoli №300 sergepiyskogo rayona goroda tashkent; prepodavatel matematiki spetsializirovannoy shkoli №307 yashnabadskogo rayona goroda tashken...

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