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A number is 20 less than its square. Find all such numbers.​

A number is 20 less than its square. Find all such numbers.​
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2 votes
A number is 20 less than its square. Find all such numbers.​

User Alexleutgoeb
by
8.0k points

1 Answer

4 votes

Answer:

Explanation:


x = x^(2) - 20


x^(2) - x - 20 = 0


(x - 5)(x + 4) = 0


x = -4, 5

User Zythyr
by
8.5k points
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