Answer:
x ^ 2 - x - 12
Explanation:
(x + 3)(x -4)
xx + x(-4) + 3x + 3(-4)
xx - 4x + 3x - 3 x 4
Simplify: xx - 4x + 3x - 3 x 4
Answer: x ^ 2 - x - 12
your answer is x^2 - x - 12
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