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Warm Up 1. What is the degree of the monomial? 3 3 x y a) b) 6x 2 c) 7x 2. Write each polynomial in standard form and state its name based on the number of terms and the degree. a) 3 5x 4 x 2 b) 8x x 5 x3 ADDING AND SUBTRACTING POLYNOMIALS Section 8.1 B Objective ◦TSWBAT add and subtract polynomials. Example 1 Add the two polynomials. 2 x 120x 2 and 0.5x +0 300x 8000 2 + 1.5 x 180x 8000 2 ◦ Step 1: Line Up Like terms. ◦ Step 2: add a 0 for a placeholder where there is no like terms. ◦ Step 3: combine straight down. ◦ Step 4: Put the answer in standard form. Practice (3z 3 4 7 z 2 ) (8z 2 6z 5) (3x 2 4x 5) (5x 2 2x 8) Example 2 Subtract the two polynomials. 2 x 4 x 3x 3 2 6 x +0 5x 4 3 and 2 +0x - 4 x x 3x 4 3 2 ◦ Step 1: Line up like terms. ◦ Step 2: put 0’s ◦ Step 3: change all signs of bottom polynomial and combine straight down. ◦ Step 4: make sure your answer is in standard form. 1. Practice 2 (4m m 9) (4m2 m 12) 3 2 3 2 ( x 3 x 5 x ) ( 7 x 5 x 12) 2. Assignment ◦Pg. 506-507 #26-35, 40, 42