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Math 16. Jane says the factors of the trinomial X -10x-24 are (x-6)(x-4). Is Jane correct? Explain and make corrections if necessary. 13] MFM2PO Page

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16. Jane says the factors of the trinomial X -10x-24 are (x-6)(x-4). Is Jane correct? Explain and make corrections if necessary. 13] MFM2PO Page 2 Assignment: Quadratic Expressions 17. Greg works as a caretaker at a park. In the fall, he rakes all the leaves in the rectangular park. The length of the park is 3x + 1 and the width of the park is 2x + 4, both measured in metres. a) Find the quadratic expression that represents the area of the park. [2] b) Calculate the actual area that Greg has to rake if x = 5 m. [1] Thinking: 18. Josh expanded (6-7x) ands and got 36-49x" . When Jennifer expanded the same expression, she got 36+49x" . Who is correct? Explain your reasoning. [3]

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