Answer: x^2+4x-45
Explanation:
Multiply (x-5)(x+9)
Using the FOIL Method.
Multiply
x and x
x and -5
x and 9
-5 and 9
You should get x^2-5x+9x-45
Subtract -5x and 9 and you get your answer
x^2+4x-45
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