Math, asked by lianaAye, 9 months ago

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Answered by anni5256
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Answer:

 {x}^{2}  + x(5 - 4) - 20  \\   {x}^{2}  + 5x - 4x - 20 \\ x(x + 5) - 4(x + 5) \\ (x + 5)(x - 4)

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