If A=6+9x^2 and B=7+3x,the what is A in terms of
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IfA=6+9x^2andB=7+3x,thewhatisAintermsofIfA=6+9x^2andB=7+3x,thewhatisAintermsofIfA=6+9x^2andB=7+3x,th
If A=6+9x^2 and B=7+3x,the what is A in terms of
If A=6+9x^2 and B=7+3x,the what is A in terms of
If A=6+9x^2 and B=7+3x,the what is A in terms of
答:A=B^2-14B+55
译:若A=6+9x^2,B=7+3x,则A用B如何表示?
以x为中间量,过渡转化,以B表示A
∵B=3x+7
∴x=(B-7)/3
代入A=9x^2+6得,A=9【(B-7)/3】^2+6=...(化简得)=B^2-14B+55
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