Answer:
36a^2+12ab+b^2
Step-by-step explanation:
To solve this problem, the first thing we have to do is regroup the terms so that we can then subtract, simplify, subtract, and finally simplify again.
But first we must know.
<h3>¿What are the equations?</h3>
Equations are those mathematical equalities divided between two expressions which are called members and separated by their equal sign, in which known elements and unknown or unknown data appear, related by mathematical operations.
<h3>We solve the problem:</h3>
- 8n - 7 = -12 + 3n
- 8n - 7 = 3n - 12
- 8n - 7 - 3n = -12
- 5n - 7 = -12
- 5n = -12 + 7
- 5n = -5
- N = -1
Now we must check our results.
8n -7 = -12 + 3n
8 × - 1 - 7 = -12 + 3 × - 1
- 8 - 7 = - 12 - 3
- 15 = - 12 - 3
- 15 = - 15
So, our results are correct, the answer is n = - 1
¡Hope this helped!
Answer:

Step-by-step explanation:
we have:
7a^2+4a+8 -5a^2 -4a -4
2a^2 +4
Pi radians =180 degrees:
<span>That is, π rad = 180°
</span>
60° in radian measure = 60° × π / 180°
60° × π / 180° = 1/3 π rad
= 0.33333333333π rad
=
1.0471975512 rad
Answer:
Descending order
Step-by-step explanation:
