若a+b=1,a-b=2006,则a2-b2=______.
若a+b=1,a-b=2006,则a2-b2=______.
如果实数a,b满足条件a2+b2=1,|1-2a+b|+2a+1=b2-a2,则a+b=______.
已知a-b=1,则a2-b2-2b的值为______.
已知a2b2+a2+b2+1=4ab,则a=______,b=______.
若a+2b=-3,a2-4b2=21,则a-2b+1=______.
已知实数a,b满足方程(a2+b2+5)(a2+b2-5)=0,则a2+b2=______
已知a+b=4,a-b=3,则a2-b2=______.
如果a+b=2012,a-b=1,那么a2-b2=______.
若a=2009,b=-2010,则a2+2b2+3ab=______.
若a+b=-3,ab=2,则a2+b2=______.
已知:a-b=3,ab=1,则a2-3ab+b2=______.
已知a+b=1,ab=-12,则a2+b2的值为______.