题目内容
计算:(7-4
)(2-
)2+(2+
)(2-
)+
.
(7-4
)(2-
)2+(2+
)(2-
)+![]()
=(7-4
)(7-4
)+22-(
)2+![]()
=(7-4
)2+4-3+![]()
=97-56
+4-3+
=98-55
.
练习册系列答案
相关题目
题目内容
计算:(7-4
)(2-
)2+(2+
)(2-
)+
.
(7-4
)(2-
)2+(2+
)(2-
)+![]()
=(7-4
)(7-4
)+22-(
)2+![]()
=(7-4
)2+4-3+![]()
=97-56
+4-3+
=98-55
.