2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm
Hi there ! i think is number one. or a
For this case we have the following polynomial:

To answer the question, what we must do is rewrite the polynomial in its standard form.
We have then that the polynomial will be given by:

Therefore, we have the ordered polynomial in descending form of exponents.
Therefore, the second term of the polynomial is:

Answer:
The second term of the polynomial is given by:

Answer:thats your answer
Step-by-step explanation: