阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”设(210-x)=a,(x-200)=b,
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![阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”设(210-x)=a,(x-200)=b,](/uploads/image/z/1084775-23-5.jpg?t=%E9%98%85%E8%AF%BB%E7%90%86%E8%A7%A3%E9%A2%98%EF%BC%9A%E2%80%9C%E8%8B%A5x%E6%BB%A1%E8%B6%B3%EF%BC%88210-x%EF%BC%89%EF%BC%88x-200%EF%BC%89%3D-204%2C%E8%AF%95%E6%B1%82%EF%BC%88210-x%EF%BC%892%2B%EF%BC%88x-200%EF%BC%892%E7%9A%84%E5%80%BC%2C%E2%80%9D+%E8%AE%BE%EF%BC%88210-x%EF%BC%89%3Da%E9%98%85%E8%AF%BB%E7%90%86%E8%A7%A3%E9%A2%98%EF%BC%9A%E2%80%9C%E8%8B%A5x%E6%BB%A1%E8%B6%B3%EF%BC%88210-x%EF%BC%89%EF%BC%88x-200%EF%BC%89%3D-204%2C%E8%AF%95%E6%B1%82%EF%BC%88210-x%EF%BC%892%2B%EF%BC%88x-200%EF%BC%892%E7%9A%84%E5%80%BC%2C%E2%80%9D%E8%AE%BE%EF%BC%88210-x%EF%BC%89%3Da%2C%EF%BC%88x-200%EF%BC%89%3Db%2C)
阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”设(210-x)=a,(x-200)=b,
阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a
阅读理解题:
“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”
设(210-x)=a,(x-200)=b,
则ab=-204,且a+b=(210-x)+(x-200)=10,
∵(a+b)2=a2+2ab+b2
∴a2+b2=(a+b)2-2ab=102-2(-204)=508
即(210-x)2+(x-200)2的值为508.
同学们,根据材料,请你完成下面这一题的解答过程:
“若x满足(2013-x)2+(2011-x)2=4028,试求(2013-x)(2011-x)的值”.
阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”设(210-x)=a,(x-200)=b,
设a=2013-x,b=2011-x
则a-b=2,a2+b2=4028
(a-b)2=a2+b2-2ab=4
ab=2012
阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)²+(x-200)²的值,”阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)²+(x-200)²的值,”设(210-x)=a,(x-200)=b
阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”设(210-x)=a,(x-200)=b,
阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,” 设(210-x)=a
阅读理解题:若x满足(210-x)(x-200)=-204,试求(210-x)²+(x-200)²的值,阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)²+(x-200)²的值,”设(210-x)=a,(x-200)=b,则ab
若x满足(210-x)(x-200)=-204,求(2013-x)(2011-x) 阅读理解题:“若x满足(210-x)(x-200)=-204,试求(210-x)2+(x-200)2的值,”设(210-x)=a,(x-200)=b,则ab=-204,且a+b=(210-x)+(x-200)=10,∵(a+b)2=a2+2ab+b2
已知x≠0,函数f(x)满足f(x-x分之一)=x方加x方分之一,求f(X).此处的函数f(x)满足f(x-x分之一)如何理解?
阅读理解题:阅读下列材料,关于x的方程:x+1 /x =c+1 /c 的解是x1=c,x2=1/c ;x-1/x阅读理解题:阅读下列材料,关于x的方程:x+1 /x =c+1 /c 的解是x1=c,x2=1/c ;x-1/x =c-1/c (即x+(-1/x) =c+(-1/c)的解是x1=c,x2
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