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krek1111 [17]
3 years ago
9

F(x)=99, what is x?

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
3 0

The answer is x = 10, and it could alternatively be x = -10 depending on what topic this is and if negatives apply.

x^2 - 1 = 99
Add 1 to both sides.
x^2 = 100
Square root both sides
x = 10

Like this answer? Give it a Brainiest award if so.

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