Do Now: Factor the polynomial. (5.4 worksheet B) 1.) x4 – 36 2.) x4 + x2 – 20

5.4: Factoring Polynomials Academy Algebra II 5.4: Factoring Polynomials

Factor by grouping (5.4: w/s B) 1.) x3 – 3x2 + 6x – 18 2.) 25p3 – 25p2 – p + 1

Factoring Cubes Sum of Two Cubes a3 + b3 = (a + b)(a2 – ab + b2) Difference of Two Cubes a3 – b3 = (a – b)(a2 + ab + b2) Examples: Factor 1.) 8x3 + 64

(5.4 w/s B) Factor the sum or difference of cubes 1.) 2w3 + 54 2.) 40v3 – 625

Factor the polynomial (5.4 w/s B) 1.) x6 – 4 2.) 2b4 + 14b3 – 16b – 112

5.4: Practice C worksheet

5.4: Practice B worksheet