Question

Find the value of this expression if x = -7.
x² +5
x+1
Enter the correct answer.

Answer 1

Since x = -7, the equation would look like this:

-7^2 (or 7 squared) + 5 = ?
-7 squared can be solved by multiplying -7 x -7, which would give us positive 49.
49 + 5 = 54
Therefore, x^2 + 5 = 54.

-7 + 1 = -6. This equals negative 6 because when adding a positive number to a negative number, the result always will move to the right on the number line, which is closer to 0 because we started with a negative integer. Therefore, x + 1 = -6.

Your final answer: x^2 + 5 = 54, and x + 1 = -6.