x²-8x+12=0
(x-2)(x-6)=0
x1=2,x2=6
1.三角形三边是5,5,2,周长5+5+2=12
2.三角形三边是5,5,6,周长5+5+6=16
3.三角形三边是5,6,6,周长5+6+6+=17
等腰三角形的一边长为5,另一边长是方程x²-8x+12=0的根,求周长
等腰三角形的一边长为5,另一边长是方程x²-8x+12=0的根,求周长
数学人气:957 ℃时间:2020-03-29 01:12:23
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