填空: (1)x2+2·x·2+ =(x+ )2, (2)x2-2·x·6+ =(x- )2, (3)x2+10x+ =(x+ )2, (4)x2-8x+ =(x- )2. 查看更多

 

题目列表(包括答案和解析)

26、填空:
(1)x2+12x+
36
=(x+6)2
(2)x2-10x+
25
=(x-
5
2
(3)x2+8x+
16
=(x+
4
2

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3、填空:
(1)x2+2•x•2+
4
=(x+
2
2
(2)x2-2•x•6+
36
=(x-
6
2
(3)x2+10x+
25
=(x+
5
2
(4)x2-8x+
16
=(x-
4
2

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填空:
(1)x2+12x+______=(x+6)2
(2)x2-10x+______=(x-______)2
(3)x2+8x+______=(x+______)2

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填空:
(1)x2+12x+    =(x+6)2
(2)x2-10x+    =(x-    2
(3)x2+8x+    =(x+    2

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填空:
(1)x2+12x+    =(x+6)2
(2)x2-10x+    =(x-    2
(3)x2+8x+    =(x+    2

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