The expansion of (x – 10)(x + 12)is a)x2 + 2x – 120 d) x2 – 2x + 120 b)x2 – 2x - 120 c) x2 + 2x + 120
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Answer:
a
Step-by-step explanation:
(x – 10)(x + 12)
x(x+12) -10(x+12)
x2 +12x -10x -120
x2+2x -120
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