ALGEBRA II HONORS/GIFTED - FACTORING REVIEW 9/15/2018 ALGEBRA II HONORS/GIFTED @ FACTORING REVIEW (or…stuff you probably forgot)
Factor completely. 1) 5x2 – 20x - 105 2) 16x2 – 24x + 9 ANSWER : 5(x – 7)(x + 3) 2) 16x2 – 24x + 9 ANSWER : (4x – 3)2
3) 40x2 - 250 4) 30x3y + 14x2y2 – 4xy3 ANSWER : 10(2x + 5)(2x – 5) ANSWER : 2xy(5x – y)(3x + 2y)
5) 4x3 + 32 6) 216m3 – n3 ANSWER : 4(x + 2)(x2 – 2x + 4) ANSWER : (6m – n)(36m2 + 6mn + n2)
Factoring by Grouping 7) x3 – 3x2 + 5x - 15 8) 3x3 – 15x2 – 12x + 60 ANSWER : (x2 + 5)(x – 3) 8) 3x3 – 15x2 – 12x + 60 ANSWER : 3(x – 5)(x + 2)(x – 2)