Question

How do you evaluate `(5k-9k ^ { 4} ) - ( 4k + 2k ^ { 4} ) + ( 8k - 6k ^ { 2} - 3k ^ { 4} )`?

Answer 1

`-14k^4-6k^2+9k`

Explanation:

We can simplify this by removing the parenthesis:

`(5k−9k^4)−(4k+2k^4)+(8k−6k^2−3k^4)`

`5k−9k^4−4k-2k^4+8k−6k^2−3k^4`

Now, we can combine the terms with the same degree:

`-14k^4-6k^2+9k`

We can't factor this expression, so that's our final answer! Hope this helps!