SOLUTION: Perform order of operation. Please show me how for this one. thanks! (X-4) (X+7)

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Question 62981: Perform order of operation. Please show me how for this one. thanks!
(X-4) (X+7)

Answer by checkley71(8403)   (Show Source): You can put this solution on YOUR website!
(X-4)(X+7)
X^2-4X+7X-28
X^2+3X-28