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olchik [2.2K]
3 years ago
7

X^2-8x-9=0 solve by completing the square

Mathematics
2 answers:
OLEGan [10]3 years ago
8 0

Answer: (x-9)(x+1), so x=9 and x=-1

Step-by-step explanation:

X^2-8x-9=0

-9 times 1 = -9 and -9 plus 1 = -8

So (x-9)(x+1)

X=9, x=-1

MaRussiya [10]3 years ago
5 0
-1 jfbdjebfbhevdibd djfbd
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Question 12<br> With steps please
34kurt

Answer:\ \boxed{5^2}

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6 0
3 years ago
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4 0
3 years ago
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