若a+b=3,ab=2,则a²b+ab²=______.
若a+b=3,ab=2,则a²b+ab²=______.
已知A=a2-ab,B=ab+b2,则A+B=______,A-B=______,3A-2B=______.
若a+b=3,ab=-2,则(4a-5b-3ab)-(3a-6b+ab)=______.
若a-b=1,a²+b²=25,则ab=______
已知a+b=-7,ab=10,则代数式(3ab+6a+4b)-(2a-2ab)的值为______.
若a/b=2 则a*a-ab+b*b/a*a+b*b等于?
若4a=5b,则a:b=______.(ab≠0)
实数a,b满足a3+b3+3ab=1,则a+b=______.
若a+b=3,ab=2,则a2b+ab2=______.
若a=2009,b=-2010,则a2+2b2+3ab=______.
若a+b=-3,ab=2,则a2+b2=______.
已知a+b=2,ab=-1,则3a+ab+3b= a²+b²=