X+3x-3+2x²+8-5x

Options 1,2,3 or 4?

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

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Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.