09/07/28 22:52:08
次の式を因数分解せよ。
(1)a2乗+4a+4-b2乗
(2)x2乗-4y2乗-4y-1
(3)(x+y)2乗+6(x+y)-7
(4)2(a+1)2乗-(a+1)-15
(5)ab-b2乗+a+1
(6)x2乗-2xy+2x-2y+1
(7)x2乗+(3y+4)x+(y+1)(2y+3)
(8)2x2乗-xy-y2乗+7x+2y+3
09/07/28 22:52:08
次の式を因数分解せよ。
(1)a2乗+4a+4-b2乗
(2)x2乗-4y2乗-4y-1
(3)(x+y)2乗+6(x+y)-7
(4)2(a+1)2乗-(a+1)-15
(5)ab-b2乗+a+1
(6)x2乗-2xy+2x-2y+1
(7)x2乗+(3y+4)x+(y+1)(2y+3)
(8)2x2乗-xy-y2乗+7x+2y+3