1.

Factorize 2x^3-x^2-15x+18 in synthetic division method

Answer»

Answer:

Here x = 2 is ZERO of POLYNOMIAL (by hit & trial) so (x - 2) is one factor. Now

2 {x}^{3}  -  {x}^{2}  - 15x + 18 = 2 {x}^{3}  - 4 {x}^{2}  + 3 {x}^{2}  - 6x - 9x + 18 =

2 {x}^{2} (x - 2) + 3x(x - 2) - 9(x - 2) = (x - 2)(2 {x}^{2}  + 3x - 9)

(x - 2)(2 {x}^{2}  + 6x - 3x - 9) =

(x - 2)(2x(x + 3) - 3(x + 3)) =

(x - 2)(x + 3)(2x - 3)

Required factor.

Hope this will HELP you. Pls mark BRAINLIEST. Thanks



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