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The opposite of x squared plus 5?

The opposite of x squared plus 5?-example-1

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The opposite of x squared plus 5 is -x² - 5.

The inverse of an expression f(x) is another expression f⁻¹(x) that "undoes" what f(x) does. In other words, f⁻¹(f(x)) = x for any value of x in the domain of f(x).

The additive inverse of an expression f(x) is another expression -f(x) that, when added to f(x), results in 0. In other words, f(x) + (-f(x)) = 0 for any value of x where both expressions are defined.

In your question, we're dealing with the additive inverse. The expression "x squared plus 5" can be written as f(x) = x² + 5. Therefore, its opposite, as an additive inverse, is -f(x) = -x² - 5.

User Samsad
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f(x)=- x^(2) +5\\\\x=0,\ so\ f(x)=-0^2+5=5\\x=1,\ so\ f(x)=-1^2+5=4\\x=2,\ so\ f(x)=-2^2+5=1\\x=3,\ so\ f(x)=-3^2+5=-4
The opposite of x squared plus 5?-example-1
User Jon Hoffman
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