Is this correct? im not sure about the second ques
Answer:
x=3
Step-by-step explanation:
You can solve by:
5x+7=-3x-31
adding 3x to each side:
8x+7=31
Subtract 7 from each side:
8x=24
Divide each side by 8:
x=3
That is your answer
Hope this helps!
I'm not sure but I think it is C. Hope this helps. BTW your cute. :D
Answer:

Step-by-step explanation:
x^3+3x^2-x+2x^2+6x-2
To simplify this expression completely we combine like terms
3x^2 and 2x^2 are like terms
3x^2 + 2x^2 is 5x^2
-x and 6x are like terms
-1x + 6x is 5x


We cannot simplify more because all terms are unlike terms.
Answer:
18
Step-by-step explanation:
The hypotenuse (longest side) = The 2 sides added together.