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Oxana [17]
3 years ago
5

The difference of the square of a number and 18 is equal to 3 times that number. Find

Mathematics
1 answer:
ololo11 [35]3 years ago
7 0

Answer:

6.

Step-by-step explanation:

To solve this, you can set up an equation as such:

x²-18= 3x

Now, rearrange this to make it an equation in standard form:

x²-3x-18=0.

Simply turn this equation into factored form:

(x-6)(x+3)= 0.

The only positive solution here is x=6.

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