问题
解答题
如果(20-2x)2+|
|
答案
根据题意得
,20-2x=0
y-1=01 2
解得
,x=10 y=2
∴3(x-7)12÷(y+1)5,
=3(10-7)12÷(2+1)5,
=3×312÷35,
=313÷35,
=38.
故填38.
如果(20-2x)2+|
|
根据题意得
,20-2x=0
y-1=01 2
解得
,x=10 y=2
∴3(x-7)12÷(y+1)5,
=3(10-7)12÷(2+1)5,
=3×312÷35,
=313÷35,
=38.
故填38.