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If g(x) = x^2 + x , what is g(-8)

User Pauljz
by
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2 Answers

5 votes

Answer: 56

Explanation:

Given function:

g(x) = x^2 + x

We know that the value of x is -8. So I plug it into the function.


g(-8) = (-8)^2 + (-8)

g(-8) = 64 - 8

g(-8) = 56

Therefore, g(-8) = 56.

User StuFF Mc
by
8.2k points
3 votes

-------------------------------------------------------------------------------------------------------------

Answer:
\textsf{g(-8) = 56}

-------------------------------------------------------------------------------------------------------------

Given:
\textsf{g(x) = x}^2\textsf{ + x}

Find:
\textsf{The solution of g(-8)}

Solution: In order to start working toward the solution, we need to initially set the value of x in the equation to -8.


\textsf{g(x) = x}^2\textsf{ + x}


\textsf{g(-8) = (-8)}^2\textsf{ + (-8)}

Now, that we have replaced the x variable with -8, we can now simplify the values and combine them to get the final solution. The first number,
\textsf{-8}^2 is the same as
\textsf{(-8) * (-8)} which turns out to be 64. We can now subtract 8 from 64 to get our final answer of 56.

Therefore, the final answer is
\textsf{g(-8) = 56}

User Thomas Aylott
by
8.4k points

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