Question

若m=2n+1,则m^2-4mn+4n^2的值是

数学题目求解

Answer 1

m=2n+1,则m^2-4mn+4n^2的值是

m^2-4mn+4n^2
= ( m- 2n) ²
代入 m =2n+1
= (2n+1 -2n ) ²
= 1

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乃是万中无一的武林奇才.
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"选为满意答案"

Answer 2

m^2-4mn+4n^2 =（m-2n）^2
m=2n+1，所以 m-2n=1
所以m^2-4mn+4n^2 =（m-2n）^2=1
如果有不懂的地方可以向我追问，满意还请你采纳哦。谢谢啦！

Answer 3

m^2-4mn+4n^2
=(m-2n)²
=1²
=1

Answer 4

m=2n+1
m-2n=1
m^2-4mn+4n^2=(m-2n)^2=1

Answer 5

m=2n+1
m-2n=1
m^2-4mn+4n^2
=(m-2n)²
=1