Question

find factorisation. ​

Answer 1

${x}^{3} + 7 {x}^{2} + 14x + 8 \\ \\ = > {x}^{3} + (4 {x}^{2} + 3 {x}^{2}) + (12 x + 2x) + 8 \\ \\ = > {x}^{3} + 4 {x}^{2} + 3 {x}^{2} + 12x + 2x + 8 \\ \\ = > {x}^{2} (x + 4) + 3x(x + 4) + 2(x + 4) \\ \\ = > (x + 4)( {x}^{2} + 3x + 2) \\ \\ = > (x + 4)( {x}^{2} + 2x + x + 2) \\ \\ = > (x + 4)[x(x + 2) + 1(x + 2)] \\ \\ = > (x + 4)(x + 2)(x + 1)$

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Hope it helps ☺

Fóllòw Më ❤