x²+7x+10 x²-2x-8 y²-7y+12 x²+7x-18(1)x²+7x+10 (2) x²-2x-8 (3)y²-7y+12 (4)x²+7x-18
问题描述:
x²+7x+10 x²-2x-8 y²-7y+12 x²+7x-18
(1)x²+7x+10 (2) x²-2x-8 (3)y²-7y+12 (4)x²+7x-18
答
(X+2)(X+5)
(X-4)(X+2)
(y-3)(y-4)
(x+9)(x-2)