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(x-2)(x+5) 1 x2 + 7x + 12 (x+4)(x+3) (x-2)(x-5) 2 (a-1)(a-2) a2 + 5a + 4 (a2+1)(a2+2) (a+4)(a+1) 3 (m-2)(m-2) m2 - 4m +4 (m+2)(m-1) (m+2)(m+1) (x-2)(x+8) 4 x2 - 6x - 16 (x-1)(x+16) (x+2)(x-8) (y-21)(y+1) 5 y2 +7y - 18 (y+9)(y-2) (y-7)(y+3) (n-3)(n-5) 6 n2 + 8n + 15n3 n(n+8+15n2) (n+15)(n+1) 7 (m-2)(m-3) m2 - 5m + 6 (m-3)(m+2) (m+3)(m-2) 8 (a-2)(a-12) a2 - 10a + 24 (a-3)(a-8) (a-6)(a-4) (b-1)(b-1) 9 b2 - 2b + 1 (b+1)(b+1) (b+2)(b-1) (x-3)(x+3) 10 x2 - 6x + 9 (x-3)(x-3) (x+3)(x+3) |