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Leona [35]
3 years ago
9

I'm thinking of a number. This number is 12 less than its square. What could my number be?

Mathematics
2 answers:
ANTONII [103]3 years ago
8 0

Answer:

4

Step-by-step explanation:

n represents the number

n = -12 + n2        reorder terms

n = n2 - 12          subtract n from both sides

0 = n2 - n - 12     FOIL

0 = (n - 4)(n + 3)

(-3,4)

So the only 2 numbers that could be 12 less than its square are -3 and 4, but I am pretty sure that they want positive numbers, so I would go with 4.

Rudik [331]3 years ago
4 0
Is it 4? Because the square of it is 16 and 16-12 = 4
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