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

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?

The amount of tears in the room (denoted by ttt) can be defined as a function of the number of people present in the room (denoted by ppp), the number of chopped onions in the room (denoted by ooo), and the deliciousness of the onions (denoted by ddd) using this formula: t =3\cdot \dfrac{p\cdot o^3}{d^2}t=3? d 2 p? o 3 ?