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Find the H.C.F of x² - 3x ,x² - 9​
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Find the H.C.F of x² - 3x ,x² - 9​

User ThatChris
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2 Answers

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x²－3x＝x(x－3)
x²－9＝x²－3²＝(x－3)(x＋3)
∴the highest common factor of x²－3x and x²－9 is x－3

Hope my answer helped u :)
User Diceyus
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3 votes
x^2-3x = x(x-3)
x^2-9 = x^2 - 3^2 = (x-3)(x+3)
HCF = x-3
User Orjanp
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5.3k points
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