7-7 Practice A Multiplying Polynomials

Name Date ClassLESSON7-7Multiply.Practice AMultiplying Polynomials1. 4x 5x 2. 3 x 2 5x 3. 6 y 2 3 y 3 20 x 2 15 x 3 18 y 54. 3 5x 7 5. 4x 2 x 2 7x 3 15x 21 8 x 3 28 x 2 12xFill in the blanks by multiplying the First, Inner, Outer, and Lastterms. Then simplify.6. x 5 x 2 7. x 4 x 3 x 2 2x 5x 10 x 2 3x 4x 12F O I L F O I LSimplify: x 2 7x 10 Simplify: x 2 x 12Fill in the blanks below. Then simplify.8. x 3 x 2 4x 7 x x 2 4x 7 3 x 2 4x 7 Distribute: x 3 4 x 2 7x 3 x 2 12x 21Simplify: x 3 7 x 2 19x 219. 2x 1 4 x 3 3 x 2 5 2x 4 x 3 3 x 2 5 1 4 x 3 3 x 2 5 Distribute: 8 x 4 6 x 3 10x 4 x 3 3 x 2 5Simplify: 8 x 4 10 x 3 3 x 2 10x 510. The length of a rectangle is 5 inches greater than the width.a. Write an expression for the width of the rectangle. wb. Write an expression for the length of the rectangle. w 5c. Write a simplified expression for the area of the rectangle. Area length width w 2 5wd. Find the area of the rectangle when the width is23 inches. 24 i ne. Find the area of the rectangle when the length is29 inches. 36 i nCopyright © by Holt, Rinehart and Winston.51 Holt Algebra 1All rights reserved.

x 5 x 8 x 2 6x 3 Copyright © by Holt, Rinehart and Winston.79 Holt Algebra 1All rights reserved.