Math, asked by lakshyaa652, 4 months ago

x square - 9 X + 20

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Answered by Anonymous

2

Answer:

${x}^{2} - 9x + 20 \\ \\ = {x}^{2} - (5 + 4)x + 20 \\ \\ = {x}^{2} - 5x - 4x + 20 \\ \\ = x(x - 5) - 4(x - 5) \\ \\ = (x - 5)(x - 4)$

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