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OpenStudy (anonymous):
Multiply: (x - 4)(x - 5). A. x2 + 20 B. x2 + 20x - 9 C. x2 - 9x + 20
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OpenStudy (anonymous):
x^2 -5x -4x +20
OpenStudy (anonymous):
Simplify this further, you get x^2 -9x +20
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