问题
填空题
(-2m+3)(______)=4m2-9,(-2ab+3)2=______
答案
(1)4m2-9=(-2m+3)(-2m-3),故填(-2m-3);
(2)(-2ab+3)2=4a2b2-12ab+9.故填4a2b2-12ab+9.
(-2m+3)(______)=4m2-9,(-2ab+3)2=______
(1)4m2-9=(-2m+3)(-2m-3),故填(-2m-3);
(2)(-2ab+3)2=4a2b2-12ab+9.故填4a2b2-12ab+9.