julia5WohMierrr julia5WohMierrr

23-12-2016
Mathematics

contestada

What value(s) of x make the equation x2 - 18x + 81 = 0 true? a. 9 b. -9, 9 c. 0, 9 d. 0, -9, 9

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Аноним Аноним

23-12-2016

I hope this helps you

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kghansah kghansah

25-12-2016

If we factor, we get (x-9)(x-9)=0. Clearly, x=9 works. If you plug in 0 and -9, neither of them will work. A is your answer.

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