Answer:
7
Step-by-step explanation:
Sub -1 in for each x:
-3x³-4x
-3(-1)³-4(-1)
-3(-1)+4
3+4
7
Answer: a, 7ft
Step-by-step explanation:
(x+2)/(x) + (x-3)/(x+2)
Common denominator x(x+2)
Reduce both to common denominator:
x+2)/[x(x+2)] + (x-3)/[x(x+2)] ===> [(x+2)² + (x-3)] / [x(x+2)]
= [x²+4x+4+x-3] / [x(x+2)]
=[x²+54x+1] / [x(x+2)]
<h2>
Explanation:</h2><h2>
</h2>
If we can write a polynomial in the form 
, then we can factor it as:
In this problem, we have the following expressions:
- For 1 and 4 we can't write this in the form so this is not a difference of squares.
So we could write 2 as a difference of squares.
So we could write 2 as a difference of squares.
√27 can be simplified. First we split it into √9√3 because 9*3=27. Now the √9 becomes 3. We can multiply this 3 with the 3 in the beginning of the problem to get 9√3 as the final answer
Hope this helps
