解方程:x²-25=0 (2x-1)³=-8 4(x+1)²=8计算:根号49/144乘根号144/9 4乘根号49 -根号3又1/16+根号4
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/26 04:49:04
![解方程:x²-25=0 (2x-1)³=-8 4(x+1)²=8计算:根号49/144乘根号144/9 4乘根号49 -根号3又1/16+根号4](/uploads/image/z/701940-12-0.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9Ax%26%23178%3B-25%3D0+%EF%BC%882x-1%29%26%23179%3B%3D-8+4%28x%2B1%29%26%23178%3B%3D8%E8%AE%A1%E7%AE%97%EF%BC%9A%E6%A0%B9%E5%8F%B749%2F144%E4%B9%98%E6%A0%B9%E5%8F%B7144%2F9+4%E4%B9%98%E6%A0%B9%E5%8F%B749+-%E6%A0%B9%E5%8F%B73%E5%8F%881%2F16%2B%E6%A0%B9%E5%8F%B74)
解方程:x²-25=0 (2x-1)³=-8 4(x+1)²=8计算:根号49/144乘根号144/9 4乘根号49 -根号3又1/16+根号4
解方程:x²-25=0 (2x-1)³=-8 4(x+1)²=8
计算:根号49/144乘根号144/9 4乘根号49 -根号3又1/16+根号4
解方程:x²-25=0 (2x-1)³=-8 4(x+1)²=8计算:根号49/144乘根号144/9 4乘根号49 -根号3又1/16+根号4
1、x²=25 x=±5
2、(2x-1)³=-8 2x-1=-2 x=-1/2
3、4(x+1)²=8 (x+1)²=2 x+1=±√2 x=﹣1±√2
4、根号49/144乘根号144/9=7/12*12/3=7/3
5、4乘根号49 -根号3又1/16+根号4=4*7-√49/16+2=28-7/4+2=28又1/4