Question

(x+2)(x-3)(x-4)
simplify by removing the brackets
the ans: x^3-5x^2-2x+24
pls show me ur working in detail

Answer 1

Step-by-step explanation:

$(x + 2)(x - 3)(x - 4)$

$(x + 2) ({x(x - 4) - 3(x - 4)})$

$(x + 2)( {x}^{2} - 4x - 3x + 12)$

$(x + 2)( {x}^{2} - 7x + 12)$

$x( {x}^{2} - 7x + 12) + 2( {x}^{2} - 7x + 12)$

${x}^{3} - 7 {x}^{2} + 12x + 2 {x}^{2} - 14x + 24$

$x ^{3} - 5 {x}^{2} - 2x + 24$

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Answer 2

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