By Ron Larson

This market-leading textual content keeps to supply scholars and teachers with sound, regularly dependent factors of the mathematical recommendations. Designed for a one-term direction that prepares scholars for additional examine in arithmetic, the recent 8th version keeps the good points that experience continually made collage Algebra a whole answer for either scholars and teachers: attention-grabbing functions, pedagogically powerful layout, and leading edge expertise mixed with an abundance of conscientiously constructed examples and workouts.

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A. 0000782 b. 836,100,000 Solution a. 82 ϫ b. 361 10Ϫ5 ϫ 108 Now try Exercise 45. Example 6 Decimal Notation Write each number in decimal notation. a. 00000936 b. 345 ϫ 102 Solution a. 36 b. 5 Now try Exercise 55. T E C H N O LO G Y Most calculators automatically switch to scientific notation when they are showing large (or small) numbers that exceed the display range. To enter numbers in scientific notation, your calculator should have an exponential entry key labeled or EE EXP . Consult the user’s guide for your calculator for instructions on keystrokes and how numbers in scientific notation are displayed.

Group terms. ϭ 2x͑x ϩ 3͒ Ϫ ͑x ϩ 3͒ Factor groups. ϭ ͑x ϩ 3͒͑2x Ϫ 1͒ Distributive Property So, the trinomial factors as 2x 2 ϩ 5x Ϫ 3 ϭ ͑x ϩ 3͒͑2x Ϫ 1͒. Now try Exercise 79. Guidelines for Factoring Polynomials 1. Factor out any common factors using the Distributive Property. 2. Factor according to one of the special polynomial forms. 3. Factor as ax2 ϩ bx ϩ c ϭ ͑mx ϩ r͒͑nx ϩ s͒. 4. Factor by grouping. com for worked-out solutions to odd-numbered exercises. VOCABULARY In Exercises 1–3, fill in the blanks.

Find the degree of the sum of two polynomials of degrees m and n if m < n. and the braking distance B was 250 EXPLORATION 200 175 150 125 100 75 123. WRITING following. A student’s homework paper included the ͑x Ϫ 3͒2 ϭ x 2 ϩ 9 Write a paragraph fully explaining the error and give the correct method for squaring a binomial. 124. CAPSTONE A third-degree polynomial and a fourth-degree polynomial are added. (a) Can the sum be a fourth-degree polynomial? Explain or give an example. (b) Can the sum be a second-degree polynomial?