X^3+2x^2-4x-8 What Expression Of Operation?

X^3+2x^2-4x-8 what expression of operation?

 

\mathfrak{\huge{\red{ANSWER}}}

to \: factor \: \\ \\ = \geqslant {x}^{3} + 2 {x}^{2} - 4x - 8 \\ \\ = \geqslant takin \: common \\ \\ = \geqslant {x}^{2} (x + 2) - 4(x + 2) \\ \\ = \geqslant grouping \\ \\ = \geqslant ( {x}^{2} - 4)(x + 2)


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