Factorise x²+x−6; the two constant factors have opposite signs.
A(x−6)(x+1)
B(x+6)(x−1)
C(x−3)(x+2)
D(x+3)(x−2)
Answer & Solution
Correct answer: D. (x+3)(x−2)
The pair 3 and −2 has product −6 and sum 1.
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