(4x^2 - 2x - 1) - (-3x^3 + 2)?

Science & Mathematics by Anonymous 2018-06-01 11:02:35

Social Science

3 answers

a. -3x^3 + 4x^2 - 2x + 1 b. -3x^3 + 4x^2 - 2x - 3 c. 3x^3 + 4x^2 - 2x + 1 d. 3x^3 + 4x^2 - 2x - 3 Please help!!!

Anonymous

(4x^2 - 2x - 1) - (-3x^3 + 2) = 3x^3 + 4x^2 - 2x -3 Answer choice: d. 3x^3 + 4x^2 - 2x - 3
Anonymous

(4x² − 2x − 1) − (−3x³ + 2) =4x² − 2x − 1 +3x³ − 2 =3x³+4x²−2x−3 Hence d)
Anonymous

4x^2 - 2x - 1 - (-3x^3 + 2) = 4x^2 - 2x - 1 + 3x^3 - 2 = 3x^3 + 4x^2 - 2x - 3