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NeTakaya
3 years ago
12

Help please 40 points per question

Mathematics
1 answer:
lesya [120]3 years ago
7 0
Use FOIL (First, Outside, Inside, Last)

x(x) = x²
x(9) = 9x
-2(x) = -2x
-2(9) = -18

x² + 9x - 2x - 18

simplify by combining like terms

x² + 9x - 2x - 18

x² + 7x - 18

x² + 7x - 18 is your answer

hope this helps
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