Algebramedium · Past Paper

Factorize x^2 + 7x + 12.

A(x+2)(x+6)
B(x+3)(x+4)
C(x+1)(x+12)
D(x-3)(x-4)

✓ Correct Answer: B(x+3)(x+4)

3 and 4 add to 7 and multiply to 12.

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