alleryStart learning →Treat x+1 as one quantity and factorise (x+1)²−9.
A(x−3)(x+3)
B(x−2)(x+4)
C(x−2)(x+2)
D(x+2)(x+4)
Answer & Solution
Correct answer: B. (x−2)(x+4)
The factors are (x + 1 − 3) and (x + 1 + 3), which simplify to x − 2 and x + 4.
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