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Sewanhaka High School Math 8 Per:________________ Name:________________________________ H.W. #77: Ditto DO-NOW #77: 1) What is the product of 4d2y and 2dy3? 2) What is the expression (d2z3)(dy2z) equivalent to? Mrs. Lidowsky, Principal Mr. Long, Teacher Date:_____________________ 3) What is the perimeter of a square whose side is 5d3? Topic: Polynomials Main Idea: Multiplying Polynomial by a Polynomial Aim: RECALL ( ) floor needs a carpet. It is in the shape of a rectangle. The rectangle is x + 3 feet wide and x + 4 feet long. ( ) is not sure how much carpeting to buy. What does name need to find out in order to determine how much carpeting to buy? Before you find the area of the floor, find the product of (x + 4)(a) Now find the area of the floor. Multiply: (2d + 5)(d + 4) Simplify (x + 5)2 NOTES 4) From the product 4d and 3d, subtract 6d2 Drill: Multiply: SUMMARY: If time: a) What is the product of (x + y) and (x – y)? b) What is the product of (x + y) and (x + y)? c) What is the product of (3x - 4) and (4x + 5)? d) Find the area of a rectangle whose length is 2x + 3 and width is x + 1?