Question

x²-4x-24 factorise
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Answer 1

Question

${x}^{2} + - 4x - 24$

solution

We have to factorise it by middle term splitting

so

${x}^{2} - 4x - 24 \\ \\ {x}^{2} + 4x - 8x - 24 \\ \\ \\ x (x + 4) - 8(x + 4) \\ \\ \\ \\ \\ (x + 4)(x - 8)$

so here is your answer

hope it helps

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Answer 2

Answer:

Step-by-step explanation:

The question given is wrong

I think you meant

x²-4x-21

Answer:

$(m-7)(m+3)$

Step-by-step explanation:

$m^{2} -4m-21$

⇒ $m^{2} +3m-7m-21$

⇒ $m(m+3)-7(m+3)$

⇒ $(m-7)(m+3)$

∴ The factors are $(m-7)(m+3)$

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