Math, asked by tavanya06, 1 year ago

factorise 2x^3 +5x^2 -11x -14

Answers

Answered by Abhisheksingh123
14
answer is in the figure.
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Answered by ITZBFF
38

\mathsf\red{2{x}^{3} + 5{x}^{2} - 11x-14}

\mathsf{ =  \:  \:  \:  \:  2 {x}^{3}  + 2 {x}^{2} + 3 {x}^{2} + 3x - 14x - 14  } \\  \\ \mathsf{ = 2 {x}^{2} (x + 1) + 3x(x + 1) - 14(x + 1)} \\  \\ \mathsf{ = \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: (2 {x}^{2} + 3x - 14)(x + 1) } \\  \\ \mathsf{ = \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  (2 {x}^{2} + 7x - 4x - 14)(x + 1) } \\  \\ \mathsf{ =  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  ( x(2x + 7) - 2(2x + 7))(x + 1)}   \\  \\ \mathsf{ =  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: (x - 2)(x + 1)(2x + 7)}

\mathsf{}

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