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What value(s) of x make the equation x2 - 18x + 81 = 0 true?

User Ndemoreau
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2 Answers

2 votes

Answer:

9

Explanation:

User Duykhoa
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4 votes
We can factorise this to get (x-9)(x-9). To find the value, each bracket needs to equal 0, so the value would be x=9
User Rubotero
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