Question

xpower2+4x-21 factorise​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Here is your answer mate

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${x}^{2} + 4x - 21 \\ x {}^{2} + 7x - 3x - 21 \\ x(x + 7) + - 3( x + 7) \\ (x - 3)(x + 7)$

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