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mityaxox
@mityaxox
August 2022
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решите плиз x2-6x-27=(x+9)*(x-a)
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Verified answer
X²-6x-27=(x+9)(x-a)
x²-6x-27=x²+9x-ax-9a
9x-ax+6x=9a-27
(15-a)x=9a-27
(15-a)x=9(a-3)
x=9(a-3)/(15-a), a≠15
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Answers & Comments
Verified answer
X²-6x-27=(x+9)(x-a)x²-6x-27=x²+9x-ax-9a
9x-ax+6x=9a-27
(15-a)x=9a-27
(15-a)x=9(a-3)
x=9(a-3)/(15-a), a≠15