a,b,c为何实数时,a^2+b^2+c^2+4=ab+3b+2c,则a= ,b= ,c= .
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 05:02:33
![a,b,c为何实数时,a^2+b^2+c^2+4=ab+3b+2c,则a= ,b= ,c= .](/uploads/image/z/3797234-26-4.jpg?t=a%2Cb%2Cc%E4%B8%BA%E4%BD%95%E5%AE%9E%E6%95%B0%E6%97%B6%2Ca%5E2%2Bb%5E2%2Bc%5E2%2B4%3Dab%2B3b%2B2c%2C%E5%88%99a%3D+%2Cb%3D+%2Cc%3D+.)
xOA
0J IIzL!('"iAozvvgv%&I2yӱichC"H,)FC?|~J4Uf*Q8tXR6v+Җc ̔ZK
$ef^K'|
a,b,c为何实数时,a^2+b^2+c^2+4=ab+3b+2c,则a= ,b= ,c= .
a,b,c为何实数时,a^2+b^2+c^2+4=ab+3b+2c,则a= ,b= ,c= .
a,b,c为何实数时,a^2+b^2+c^2+4=ab+3b+2c,则a= ,b= ,c= .
a^2+b^2+c^2+4=ab+3b+2c
a^2+b^2+c^2+4-(ab+3b+2c)=0
(a^2-ab+b^2/4)+(3b^2/4-3b+3)+(c^2-2c+1)=0
(a-b/2)^2+3(b/2-1)^2+(c-1)^2=0
a=b/2,b/2=1,c=1
a=1,b=2,c=1