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21. ÏÂÁкÎÕßÊÇÒ»Ôª¶þ´Î·½³Ìʽx2-3x-4=0µÄ½â? (A) -2 (B) 1 (C)2 (D)-1

ÏÂÁкÎÕßÊÇÒ»Ôª¶þ´Î·½³Ìʽx2-3x-4=0µÄ½â?
(A) -2 (B) 1 (C)2 (D)-1
/equation/d3bd50462ee0a1c2887dfd98f27937e7.html - 2020-05-15 - ´úÊý·½³Ì
 

22. ÏÂÁÐÄÄЩ²»ÊÇÒ»Ôª¶þ´Î·½³Ìʽ? (A) x2 + x + 2 =0

ÏÂÁÐÄÄЩ²»ÊÇÒ»Ôª¶þ´Î·½³Ìʽ?
(A) x2 + x + 2 =0
(B) x 2 + 3x -1 == 2x 2 - 3x+5
(C) (2x -5)( x +1)=( x +8 )(2 x -7)
(D) x (x + 2) -( x+2)=0
(E )(x-2)(2x-3)-X2=x2-5
/equation/1fbb6e2f04e5f00637d0e4f20aae8ad6.html - 2020-05-14 - ´úÊý·½³Ì
 

23. ÏÂÁÐÄÄЩÊÇÒ»Ôª¶þ´Î·½³Ìʽ? (A) x+ y-1 = 0 (B)2x2-3x=0

ÏÂÁÐÄÄЩÊÇÒ»Ôª¶þ´Î·½³Ìʽ?
(A) x+ y-1 = 0
(B)2x2-3x+4=0
(C) (x+1)( x+2) =0
(D)1/3x2+1/2x-6=0
(E) x2 + 2y2 - 2 = 0
/equation/d310f7e57b82f82646e404067bd82325.html - 2020-05-14 - ´úÊý·½³Ì
 

24. Èô¦Á¡¢¦ÂΪ5x2-l0x-5=0µÄÁ½¸ù£¬ÔòÒÔ5¦Á¡¢5¦ÂΪÁ½¸ùµÄÒ»Ôª¶þ´Î·½³ÌʽΪºÎ?

Èô¦Á¡¢¦ÂΪ5x2-l0x-5=0µÄÁ½¸ù£¬ÔòÒÔ5¦Á¡¢5¦ÂΪÁ½¸ùµÄÒ»Ôª¶þ´Î·½³ÌʽΪºÎ?
/equation/d7020dd94445f2004aafc0a86f647cf2.html - 2020-05-03 - ´úÊý·½³Ì
 

25. ÈôÒ»Ôª¶þ´Î·½³Ìʽ¦Áx2+bx+c=0µÄÁ½±¾Á¼Îª¦Á¡¢¦Â,Ôò:¦Á+¦Â=-b/a£¬¦Á¦Â=c/a

ÈôÒ»Ôª¶þ´Î·½³Ìʽ¦Áx2+bx+c=0µÄÁ½±¾Á¼Îª¦Á¡¢¦Â,Ôò:¦Á+¦Â=-b/a£¬¦Á¦Â=c/a
/equation/f61573ed739ef9d7cc9d5f649ac0a947.html - 2020-05-02 - ´úÊý·½³Ì
 

26. ¼×¡¢ÒÒÁ½Éúͬ½âÒ»Ìâx2ÏîϵÊýΪ1µÄÒ»Ôª¶þ´Î·½³Ìʽ

¼×¡¢ÒÒÁ½Éúͬ½âÒ»Ìâx2ÏîϵÊýΪ1µÄÒ»Ôª¶þ´Î·½³Ìʽ¡£¼×½«³£ÊýÏî¿´´í£¬½â³öÁ½¸ùΪ3¡¢-5;ÒÒ½«Ò»´ÎÏî¿´´í,½â³öÁ½¸ùΪ-3¡À21/2£¬ÇëÎÊÔ­À´ÕýÈ·µÄ½âΪ¶àÉÙ?
/equation/43b55f352949bb980db40ef09ea7ac21.html - 2020-04-30 - ´úÊý·½³Ì
 

27. ½âÏÂÁÐÒ»Ôª¶þ´Î·½³Ìʽ: 1. (1-2x)2=12 2. (3x+2)2-27=0

½âÏÂÁÐÒ»Ôª¶þ´Î·½³Ìʽ:
1. (1-2x)2=12
2. (3x+2)2-27=0
/equation/db34d093eba46704efb2f4258d6501f5.html - 2020-04-27 - ´úÊý·½³Ì
 

28. ½âÏÂÁÐÒ»Ôª¶þ´Î·½³Ìʽ: 1. x2 - 20 = 0 2. (x-3)2=16

½âÏÂÁÐÒ»Ôª¶þ´Î·½³Ìʽ:
1. x2 - 20 = 0
2. (x-3)2=16
/equation/c75d5a97ae18971c9c5125b491c64d13.html - 2020-04-27 - ´úÊý·½³Ì
 

29. ¸ç¸çÓÐxÕÅ100Ôª³®Æ±¡¢8¸öʮԪӲ±Ò¡¢y¹ÌÎåÔªÓ²±ÒºÍy¸öÒ»ÔªÓ²±Ò

¸ç¸çÓÐxÕÅ100Ôª³®Æ±¡¢8¸öʮԪӲ±Ò¡¢y¹ÌÎåÔªÓ²±ÒºÍy¸öÒ»ÔªÓ²±Ò¡£ÇëÎʸç¸çÓжàÉÙÔª?
°Ö°ÖµÄÄêÁäÊÇxËꡢСÃ÷yË꣬°Ö°ÖµÄÄêÁäÊÇСÃ÷µÄ2±¶¶à4Ëê¡£ÇëÎÊСÃ÷¼¸Ëê?
/equation/84210119ee835049934d2be40ddc1452.html - 2020-01-14 - ´úÊý·½³Ì
 

30. ÇëÒÀÏÂÁÐÎÄ×ÖÐðÊöÁгö Ò»ÔªÒ»´Î·½³Ìʽ

ÇëÒÀÏÂÁÐÎÄ×ÖÐðÊöÁгö Ò»ÔªÒ»´Î·½³Ìʽ¡£
(1) 18±È¦ÖµÄ5±¶¶à7
(2)-7±È¦ÖµÄ2/5±¶Ð¡6
(3)±È¦ÖµÄ3±¶ÉÙ7µÄÊýÊÇ16
/equation/a6ce41ec8d64aa59cd9536261f8cf18a.html - 2019-12-17 - ´úÊý·½³Ì
 

31. Ò»Ôª¶þ´Î·½³Ì¼ÆËãÆ÷ÔÚÏß

Ò»Ôª¶þ´Î·½³Ì¼ÆËãÆ÷ ÓмÆËã¹ý³Ì,ʹÓÃÎÒÃÇ·½±ãµÄÒ»Ôª¶þ´Î·½³Ì¼ÆËãÆ÷À´½â¾öËùÓжþ´Î·½³ÌÎÊÌâ¡£
Ê×ÏÈ£¬ÊäÈë¶þ´Î·½³Ìax2 + bx + c = 0µÄϵÊýa£¬b£¬c£¨a¡Ù0£©¡£
½ÓÏÂÀ´£¬µ¥»÷¡°¼ÆË㡱£¬½«ÏÔʾ½â¾ö´ð
/shuxue/8009.html - 2019-08-28 - Êýѧ¼ÆËã¼°¹«Ê½
 

32. Ò»Ôª¶þ´Î·½³ÌʽµÄ½âX2£­2X£­9=0

Ò»Ôª¶þ´Î·½³ÌʽµÄ½âX2£­2X£­9=0 X2£­2X=9(ÏȽ«³£ÊýÏîÒƵ½µÈºÅÓÒ±ßX2£­2X+(£­1)2=9+(£­1)2 (µÈºÅÁ½±ß¶¼¼Ó(£­1)2)
/equation/535c280dc11436e47eab01ffd1258a21.html - 2019-01-06 - ´úÊý·½³Ì
 

33. ÇóÕâ¸öÒ»Ôª¶þ´Î·½³ÌʽµÄ½âX2£­4X£­6=0 

ÇóÕâ¸öÒ»Ôª¶þ´Î·½³ÌʽµÄ½âX2£­4X£­6=0X2£­4X=6 (ÏȽ«³£ÊýÏîÒƵ½µÈºÅÓÒ±ß)X2£­4X+(£­2)2=6+(£­2)2 (µÈºÅÁ½±ß¶¼¼Ó(£­2)2)
/equation/63c3af633bcb062a5ab5805daf57c6f0.html - 2019-01-05 - ´úÊý·½³Ì
 

34. Ò»Ôª¶þ´Î·½³ÌÔÚÏßÇó½âX2+3X£­5=0X2+3X=5

Ò»Ôª¶þ´Î·½³ÌÔÚÏßÇó½âX2+3X£­5=0X2+3X=5 (ÏȽ«³£ÊýÏîÒƵ½µÈºÅÓÒ±ß)X2+3X+(3/2)2=5+(3/2)2 (µÈºÅÁ½±ß¶¼¼Ó(3/2)2
/equation/a8d3bbd072c399e45206417ada6ab098.html - 2019-01-03 - ´úÊý·½³Ì
 

35. ÇóÒ»Ôª¶þ´Î·½³ÌµÄ½âX2+X£­3=0

ÇóÒ»Ôª¶þ´Î·½³ÌµÄ½âX2+X£­3=0X2+X=3 (ÏȽ«³£ÊýÏîÒƵ½µÈºÅÓÒ±ß) X2+X +(1/2)2=3+(1/2)2 (µÈºÅÁ½±ß¶¼¼Ó (1/2)2)(X+1/2)2=13/4 (Åä³ÉÍêȫƽ·½Ê½)
/equation/a6bbbf43ebe360a3ad1628946afc4906.html - 2018-12-23 - ´úÊý·½³Ì
 

36. ÒÑÖªÒ»Ôª¶þ´Î·½³Ìʽ X2+bX+25=0ÓÐÖظù£¬ÊÔÇóbµÄÖµ¡£

ÒÑÖªÒ»Ôª¶þ´Î·½³Ìʽ X2+bX+25=0ÓÐÖظù£¬ÊÔÇóbµÄÖµ¡£Ïê½â£ºÒ»Ôª¶þ´Î·½³Ìʽ X2+bX+25=0ÓÐÖظù£¬´ú±íÅбðʽ b2£­4ac=0b2£­4ac=0
/equation/4d01040d9855e0f94baadb30b8587574.html - 2018-12-18 - ´úÊý·½³Ì
 

37. Ò»Ôª¶þ´Î·½³Ì½âÌâ¼¼ÇÉ ½âÒ»Ôª¶þ´Î·½³Ìʽ

Ò»Ôª¶þ´Î·½³Ì½âÌâ¼¼ÇÉ ½âÒ»Ôª¶þ´Î·½³Ìʽ X2+(X+2)(X+1)£­4=(X+2)2Ïê½â£º±¾Ìâ¿ÉÒÔ»îÓõÄǰѧ¹ýµÄÒòʽ·Ö½âÀ´¼ÆËã X2+(X+2)(X+1)£­4=(X+2)2 (X2£­4)+(X+2)(X+1)=(X+2)2 (½«£­4Óëx2´Õ³ÉÒ»×é)(X+2)(X
/equation/14d4b13b191fba7f5146459013de4d21.html - 2018-12-18 - ´úÊý·½³Ì
 

38. ijһԪ¶þ´Î·½³Ìʽ X2+bX+c=0µÄÁ½¸ùΪ2ºÍ£­5£¬ÊÔÇób¡¢cµÄÖµ

ijһԪ¶þ´Î·½³Ìʽ X2+bX+c=0µÄÁ½¸ùΪ2ºÍ£­5£¬ÊÔÇób¡¢cµÄÖµ¡£Ïê½â£ºÒ»Ôª¶þ´Î·½³ÌʽµÄÁ½¸ùΪ2ºÍ£­5£¬Ôò´Ë·½³Ìʽ¿ÉдΪ£º
/equation/966072a5c3f9383b413558e2d2314b2b.html - 2018-12-17 - ´úÊý·½³Ì
 

39. Ò»Ôª¶þ´Î·½³ÌµÄ½â·¨ X(X+2)£­2(X+2)=0

Ò»Ôª¶þ´Î·½³ÌµÄ½â·¨£¬Ò»Ôª¶þ´Î·½³ÌµÄ½â·¨ ÇóÏÂÁÐÒ»Ôª¶þ´Î·½³ÌʽµÄ½â¡£(1) X(X+2)£­2(X+2)=0(2) (X+2)(X£­3)=£­6(X£­3)Ïê½â£º(1) X(X+2)£­2(X+2)=0
(X£«2)(X£­2)=0 (Ö±½ÓÌá³öX£«2)
/equation/0417c68825705d1e4746cbaac28610cd.html - 2018-12-16 - ´úÊý·½³Ì
 

40. Èô·½³Ìʽ X2£­12X+P=0¿ÉÅä·½³É (X£­6)2=30µÄÐÎʽ£¬ÔòpµÄÖµÊǶàÉÙ£¿

Èô·½³Ìʽ X2£­12X+P=0¿ÉÅä·½³É (X£­6)2=30µÄÐÎʽ£¬ÔòpµÄÖµÊǶàÉÙ£¿Ïê½â£º½« (X£­6)2=30»¯³É X2£­12X+P=0µÄÐÎʽÓÉÌâÄ¿Öª (X£­6)2=30X2£­12X+36=30
/equation/79551070501d1fa03da67eb961d6158f.html - 2018-12-13 - ´úÊý·½³Ì
 
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