若a-b=3,ab=2则(a+b)^2=
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若a-b=3,ab=2则(a+b)^2=若a-b=3,ab=2则(a+b)^2=若a-b=3,ab=2则(a+b)^2=(a+b)²=a²+b²+2ab=a²+
若a-b=3,ab=2则(a+b)^2=
若a-b=3,ab=2则(a+b)^2=
若a-b=3,ab=2则(a+b)^2=
(a+b)²=a²+b²+2ab
=a²+b²-2ab+4ab
=(a-b)²+4ab
=3²+4x2
=9+8
=17
(a+b)²
=a²+2ab+b²
=a²-2ab+b²+4ab
=(a-b)²+4ab
=3²+8
=17
若a/b=2 则a*a-ab+b*b/a*a+b*b等于?
如果a/b=2则a*a-ab+b*b/a*a+b*b求值
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若a+b-ab=0,则(3a+3b-ab)/(2a+2b+ab)=
1/a+1/b=3则a-ab+b/a+2ab+b值是?
ab/a+b=3 a-2ab+b/2a-3ab+2b?
若a/b+b/a=3,求a^2+ab+b^2/a^2-ab+b^2的值
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若a+b=3,ab=2,则a^2b+ab^2=( )
若1/a+1/b=3.则a-3ab+b/a+2ab+b的值为多少?、
若ab^2=-6,则-ab(a^2b^5-ab^3-b)=?
若ab不等于0,且3a=b,求代数式b/3a-(-b)/a-a/2b/(-b)
若a+b=3 ab=-2,求a+ab+ab+b的值
已知3a*a+ab-2b*b=0(a不等于0,b不等于0),求a/b-b/a-(a*a+b*b)/ab的值.
A-B=-1,AB=-2,则(2A-3B-AB)-(A-2B+3AB)=?”
若a-b=3,ab=2,则a^2-b^2-6b=?
已知a+b/2ab=3,则3a-7ab+3b/a+3ab+b=?