Are you trying to expand this? If so, FOIL it. First, Outside, Inside, Last.
(x-3)(x+5)
FIRST - x^2
OUTSIDE - -15
INSIDE - -3x
LAST - 5x
Add them all up - x^2 -3x+5x-15, and then simplify to x^2+2x-15.
Rosa C.
asked • 03/10/13(X-3)(x+5)
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