Question

Can somebody help me

Answer 1

Answer:4

Explanation:

YOU'LL JUST REPLACE X WITH -1

8*1-3*(-1)-7=8+3-7=4

Answer 2

The answer to the equation is 4.

Explanation:

What do we know?

The first thing we know is x is equal to negative one. There is also an equation with several Xs. So, we need to replace the Xs with negative one.

`8x^4-3x-7=?`

Substitute negative one in for x.

`8(-1)^4-3(-1)-7=?`

Now, take negative one to the fourth power.

`8*1-3(-1)-7=?`

It becomes positive one.

Next, multiply eight and one and negative three by negative one.

`8+3-7=?`

Lastly, add 8 and three and subtract seven from the sum.

`11-7=?`

`4`

The answer to the equation is 4.