SOLUTION: Please help me simplify this 1.(x-4)(x+4) 2. (2x^2+3x-1)+(7x^2-5x-3)

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Question 200658: Please help me simplify this
1.(x-4)(x+4)
2. (2x^2+3x-1)+(7x^2-5x-3)

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
1) x^2-16
2) 9x2-2x-4