Adding and Subtracting Polynomials 5.3 Adding and Subtracting Polynomials 1. Add polynomials. 2. Subtract polynomials.

Objective 1 Add polynomials.

Drop the parentheses and combine like terms. Add a trinomial and a binomial. (5p2 + 3p – 1) + (4p + 8) 5p2 + 3p – 1 + 4p + 8 5p2 + 7p + 7 Adding Polynomials Drop the parentheses and combine like terms.

Remember formulas are on the last page of the text. Write an expression in simplest form for the perimeter of the rectangle shown. 9b – 10 5b + 2 2(9b – 10) + 2(5b + 2) 18b – 20 + 10b + 4 28b – 16 Remember formulas are on the last page of the text.

Objective 2 Subtract polynomials.

Subtracting Polynomials 4x3 + 6x2 + 2x + 1 – 2x3 – 5x2 – 4x – 6 2x3 + x2 – 2x – 5 Subtracting Polynomials 1. Distribute the minus sign to every term and drop the parentheses. 2. Combine like terms.

Copyright © 2011 Pearson Education, Inc. Add and write the polynomial in descending order. a) b) c) d) Copyright © 2011 Pearson Education, Inc. 5.3

Copyright © 2011 Pearson Education, Inc. Add and write the polynomial in descending order. a) b) c) d) Copyright © 2011 Pearson Education, Inc. 5.3

Copyright © 2011 Pearson Education, Inc. Subtract and write the polynomial in descending order. a) b) c) d) Copyright © 2011 Pearson Education, Inc. 5.3

Copyright © 2011 Pearson Education, Inc. Subtract and write the polynomial in descending order. a) b) c) d) Copyright © 2011 Pearson Education, Inc. 5.3