Question

Factorise _2xcude _6xsquare+56x

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

$- 2 {x}^{3} - 6 {x}^{2} + 56x$

$= - 2x( {x}^{2} + 3x - 28)$

$= - 2x( {x}^{2} + 7x - 4x - 28)$

$= -2x{x(x + 7) - 4(x + 7)$

$= - 2x(x + 7)(x - 4)$