璇鹃锛氭暣寮忕殑闄ゆ硶锛?/p>
1
锛?/p>
瀛︿範鐩爣锛?/p>
1
鎴戣兘閫氳繃璁＄畻鍙戠幇鎬荤粨鍑哄崟椤瑰紡闄や互鍗曢」寮忕殑杩愮畻娉曞垯銆?/p>
2
鎴戣兘澶熺啛缁冭繍鐢ㄥ崟椤瑰紡闄や互鍗曢」寮忕殑杩愮畻娉曞垯杩涜璁＄畻骞惰В鍐冲疄闄呴棶棰橈紟
瀛︿範寤鸿锛?/p>
鏈妭瀛︿範鍙互鎸変互涓嬫祦绋嬭繘琛岋細閫氳繃灏嗗崟椤瑰紡闄や互鍗曢」寮忓寲鎴愬垎鏁扮殑褰㈠紡杩涜
绾﹀垎
鎺㈢储鍑哄崟椤瑰紡闄や互鍗曢」寮忕殑娉曞垯
缁冧範璁＄畻
璇惧墠鍑嗗鍖猴細
1.
璁＄畻鍑轰笅鍒楀悇寮?/p>
飥?/p>
飥?/p>
飩?/p>
4
xy
8
4
xy
8
飥?/p>
飥?/p>
飩?/p>
x
x
4
x
8
4
x
8
2
2
2.
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飥?/p>
飩?/p>
4
xy
8
飥?/p>
飩?/p>
x
4
x
8
2
閫氳繃璁＄畻锛屼綘鏄浣曡绠楀崟椤瑰紡闄や互鍗曢」寮忕殑锛岃鐢ㄨ嚜宸辩殑璇█鎻忚堪銆?/p>
璇句腑瀛︿範鍖猴細
娲诲姩涓�
鍗曢」寮忛櫎浠ュ崟椤瑰紡鐨勮繍绠楁硶鍒欙紙鎸囧悜鐩爣
1
锛?/p>
1
銆佹垜浠被姣斿崟椤瑰紡涔樺崟椤瑰紡鐨勬硶鍒欙紝灏濊瘯鐨勬�荤粨鍑哄崟椤瑰紡闄や互鍗曢」寮忕殑娉曞垯銆?/p>
鍗曢」寮忕浉闄わ紝鎶婄郴鏁般�佸悓搴曟暟骞傚垎鍒?/p>
鍚庯紝浣滀负鍟嗙殑鍥犲紡锛涘浜庡彧鍦ㄨ闄ゅ紡閲屽惈鏈夌殑
锛屽垯杩炲悓瀹冪殑鎸囨暟涓�璧蜂綔涓哄晢鐨勪竴涓洜寮忋�?/p>
2
銆佸噯纭殑璁＄畻鍑轰笅鍒楀紡瀛?/p>
6a
9
梅
3a
3
10y
14
梅
5y
7
8x
8
梅
4x
5
2xy
2
梅
1
3
xy
锛?/p>
2a
2
b
3
梅
(
锛?/p>
3a)
10a
4
b
3
c
2
梅
5a
3
bc
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娲诲姩浜?/p>
鍗曢」寮忛櫎浠ュ崟椤瑰紡鐨勮繍绠楋紙鎸囧悜鐩爣
2
锛?/p>
锛?/p>
1
锛?/p>
锛?/p>
3
5
x
2
y
3
梅
3x
2
y
(2)
(2x
2
y)
3
路
(
锛?/p>
7xy
2
)梅14x
4
y
3
(3)
(2a
锛?/p>
b)
4
梅
(2a
锛?/p>
b)
2
2.
璁＄畻
6x
6
y
5
z
2
梅
(-x
2
y
2
)
2
鐨勫�间负
锛?/p>
锛?/p>
A.6x
2
yz
2
B. -6x
2
yz
2
C. 6x
2
yz D. - 6xyz
2
鍦ㄨ绠楃殑杩囩▼涓綘鏈変粈涔堢粡楠屾垨鑰呮湁浠�涔堟敞鎰忕偣锛?/p>
璇惧悗缁冧範鍖猴細
1.
锛堟娴嬬洰鏍?/p>
2
锛?/p>
8x
6
y
4
z
梅
( ) = 4x
2
y
2
锛屾嫭鍙峰唴搴斿～鐨勪唬鏁板紡涓?/p>
A.2x
3
y
2
B. 2x
4
y
2
z C. -2x
3
y
2
z D. 0.5x
3
y
2
z
2.
锛堟娴嬬洰鏍?/p>
2
锛夊凡鐭?/p>
8
a
3
b
m
梅
8
a
n
b
2
=
b
2
锛岄偅涔?/p>
m
锛?/p>
n
鐨勫彇鍊间负
( )
A.
m=
4
锛?/p>
n
=3
B.
m
=4
锛?/p>
n
=1
C.
m
=1
锛?/p>
n
=3
D.
m
=2
锛?/p>
n
=3
3.
锛堟娴嬬洰鏍?/p>
2
锛変笅鍒楃畻寮忎腑
,
涓嶆纭殑鏄?/p>
( )
A.(
锛?/p>
12
a
5
b
)
梅
(
锛?/p>
3
ab
)=4
a
4
B.9
x
m
y
n
锛?/p>
1
梅
3
1
x
m
锛?/p>
2
y
n
锛?/p>
3
=27
x
2
y
2
C.
2
1
a
2
b
3
梅
4
1
ab
=
2
1
ab
2
D.10y
14
梅
5y
7
=2y
7
4.
锛堟娴嬬洰鏍?/p>
2
锛変笅鍒楄绠楁纭殑鏄?/p>
( )
A.(a
3
)
2
梅
a
5
锛?/p>
a
10
B.(a
4
)
2
梅
a
4
锛?/p>
a
2
C.(
锛?/p>
5a
2
b
2
)
路
(
锛?/p>
2a)
锛?/p>
10a
3
b
2
D.(
锛?/p>
a
3
b)
3
梅
1
2
a
2
b
2
锛濓紞
2a
4
b
5.
锛堟娴嬬洰鏍?/p>
2
锛変竴涓笁瑙掑舰鐨勯潰绉负
2a
3
b
2
锛屼竴杈归暱涓?/p>
ab
锛屽垯杩欎釜涓夎褰㈣繖杈逛笂鐨勯珮
涓?/p>
.
6.
锛堟娴嬬洰鏍?/p>
2
锛夎绠楋細
(1)
锛?/p>
21x
2
y
4
梅
(
锛?/p>
3x
2
y
3
) (2)(a
锛?/p>
b)
4
梅
2(
锛?/p>
a
锛?/p>
b)
2
锛?/p>
3
锛?/p>
(
锛?/p>
4a
2
b
3
)
2
梅
(2ab
2
)
2
(4)(
锛?/p>
38x
4
y
5
z)
梅
19xy
5
路
(
锛?/p>
3
4
x
3
y
2
)
鎴戝仛瀵逛簡锛?/p>
锛夐亾棰橈紝閿欓鏄?/p>
锛岃鏍规嵁閿欓鍓嶆嫭鍙蜂腑鐨勭洰鏍囨寚鍚戠潃閲嶅涔犵浉鍏冲唴瀹广�?/p>
鍙嶆�濅簰鍔╁尯锛?/p>
锛?/p>
20
鍒嗭級
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