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(1)计算:先化简,再求值:(x+3)2+(x+2)(x-2)-2x2,其中.(2)解分式...
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(1)计算:先化简,再求值:(x+3)
2+(x+2)(x-2)-2x
2,其中
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAjCAYAAADmOUiuAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFASURBVFhH7VjbDcMgDPRk7MQ6LMMojOLavAlJ
BQmJ/EGlqKrkmON8PlsFFP4B4fhwAxyukDOoQKFx7RsyGLQaAYAeqQA9aRb1BjgsuLPAzeAj+rYG
n9InnEFv0uyD4dG23HfYqNPLI98L6MwphgGuPHQmF2AaM8pgGIPsR0R1/j2Tbn1sZNChUTwHGZwm
iOs+VhdtdfKoxXZxZC6xM4oEeg1uRHspZuZ6//JynqJB7iQhZa0vmAFaYvBsH5th441YD5DLy3Jg
vXhZUOMMyOMNPF1OkgCgSmts6uiv0dVGfThbgA+Scxws7tYkea2ezkX/DSdkmcUDBTBYXZ0lJq/E
hTnviVIBepixWXLTNkb9msjmEvuJVg0MWRoMXdKUWRhAXlpuLqxzhZqIzv8q9Nt0uyxM5PwyVFiJ
+6tvgE/l8AP12dc6CiMrwAAAAABJRU5ErkJggg==
)
.
(2)解分式方程:解方程:
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFAAAAAjCAYAAAADp43CAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAIeSURBVGhD7ZnrrcMgDIWZLDuxTpZhFEbh2hQI
SfPAPjTSFUTqj0gcMF9sY1wT5gMRMJB6isMECDpBH4B+DYtZwupBa+7kb6yhMB8H6GwwxtDvhwDf
WEMBjyU4wLiwC/aXAF9bQ07RhPx1lzV8IpBhkEeV95ZJRwYY+fiwLhyCDMISws/jLIfmxc/mUaN7
YILl14VgbfBa/G4bM7wHshPSSSoK2xrxBBgceaC+FBkcIIcvpzTOeTG10cGyS3GP8TwwQD4kllwB
5xNZQi8WuNtBI5E+fpc84I01noypbag22akOfFpd49UNcwqHXFYUJ5XGfmqKsEOZlxkOBVDIexvu
faqRt/JuAtTS5DT3VgjfFuLqmlO7c1xX9lMDlOQFydgvc09Odsl82rG1HZI5LnGnwyQfvDMHKhwz
3trSoTIBKgDGBkwK4wlQDJAbL+nCQVocYGl2SltgyXJULwagENQ2Us1YXxYwgJxQy2ypjyi5iqB6
BYveEgigd25XYNbJtcVQVN+yxq/HdOpIV+Eo8cDj7g5F6u3mu3TScbzJA9GO9PcVR2Na6QbFq3NL
N/zcbs3aWk0JYawjTcvv8pnCHKUetlth6q44Ly9QR5o9Qft3AFsA6CG7QXp1GYN0pJ3F/hNG9Ijd
OL5UById6awtxgi72YgesbsHPJ6D7tf6jvR5om8PZa0+66BOeieCUB3YyYZ/Pc0ECH6+CXACBAmA
8j+fB/PTy8tdaQAAAABJRU5ErkJggg==
)
.
相关试题
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(2010•厦门)(1)计算:
;
(2)计算:[(x+3)2+(x+3)(x-3)]÷2x;
(3)解分式方程:
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(2010•厦门)(1)计算:
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(2010•厦门)(1)计算:
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.
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(1)计算:先化简,再求值:(x+3)2+(x+2)(x-2)-2x2,其中
.
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(1)解方程:x2-2x-2=0;
(2)解方程:x2+ax-2a2=0(a是常数,且a≠0)
(3)计算:![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKMAAAASCAYAAAA3+m5QAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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MyZh9zRNkLG+RyDjCaMdHHfYXmQOgUZk9kNX8FkqedI07bLXV0dExmoqSz5QP6iQt2u6deKJOU7T
aXROL1SdhsonYTjP2g+psYjKyOxRKhVF6wYwdvedfOkdcY4Tbo5PFkN3XYplfg8q5u2X3rea8cdm
IFTH9VWViFpDixbGPGzFe8bf58Oox3ORcYhmMqOFsZCMsAwyd1VGGbFGVy2MaeQ6voEZhX7Zkfro
C38cOxvpf/5P7yehId8VAAAAAElFTkSuQmCC
)
(4)分式化简:
.
-
(1)计算:
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJgAAAAjCAYAAABoz8OXAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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=
)
(2)请从下列三个代数式中任选两个构成一个分式,并化简该分式.x2-6xy+9,y2x2-9,y2x-3y.
-
(1)计算:
;
(2)请从下列三个代数式中任选两个构成一个分式,并化简该分式.2x+6,x2+6x+9,x2-9.