Question

How do you evaluate `\frac { [ 4^ { 2} + 4( - 9) ] } { [ - 2+ ( - 2) ] }`?

Answer 1

The final answer is 5.

Explanation:

First, you would solve the exponent, `4^2`, which is really just `4*4`, and that equals `16`. Now the equation is, `{16+4(-9)}/{-2+(-2)}`.

Then, you would solve `4*-9`, which equals `-36`. Now it is, `{16+(-36)}/{-2+(-2)}`.

Next, you would solve, `16+(-36)`, which is just `16-36`, and that would equal `-20`. The equation is now `(-20)/(-2+(-2))`.

Now it is time for the bottom, `-2+(-2)` is again just `-2-2`, and that equals `-4`. Now it is, `(-20)/(-4)`.

Finally, dividing a negative by a negative makes it positive, so it is `(20)/4`. Then, you would just divide `20` and `4` to get `5`.