(x - 1)(x - 2)
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x2 + 3x + 2 factors into (x + 1) (x + 2)
x2 + 3x + 7 = 5 ∴ x2 + 3x + 2 = 0 ∴ (x + 1)(x + 2) = 0 ∴ x ∈ {-2, -1}
-2
3x-1 = 11 3x = 11+1 3x = 12 x = 4 Therefore: x2+2 = 18
Yes:- x2+3x+2 = 30 X2+3x+2-30 = 0 x2+3x-28 = 0 (x-4)(x+7) = 0 x = 4 or x = -7