(1)x²+7x+10 (2)x²-2x-8 (3)y²-7y+12 (4)x²+7x-18
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(1)x²+7x+10(2)x²-2x-8(3)y²-7y+12(4)x²+7x-18(1)x²+7x+10(2)x²-2x-8(3)y
(1)x²+7x+10 (2)x²-2x-8 (3)y²-7y+12 (4)x²+7x-18
(1)x²+7x+10 (2)x²-2x-8 (3)y²-7y+12 (4)x²+7x-18
(1)x²+7x+10 (2)x²-2x-8 (3)y²-7y+12 (4)x²+7x-18
(1)x²+7x+10=(x+2)(x+5)
(2)x²-2x-8 =(x-4)(x+2)
(3)y²-7y+12=(x-4)(x-3)
(4)x²+7x-18 =(x+9)(x-2)