<u>Solution</u><u>:</u>

In the first fraction, we have to factorise the denominator using (a + b)² = a² + 2ab + b². And in the second fraction, we have to factorise the denominator using a² - b² = (a - b)(a + b) identity.

From the second fraction, cancel out from both sides (x + 3), the we get:

<u>Answer</u><u>:</u>
<u>
</u>
Hope you could understand.
If you have any query, feel free to ask.
Answer:
x>5
Step-by-step explanation:
1. First, you do distributive property with 4(x-7), which is 4x-28
2. Add 28 to both sides
3. divide 4 on each side
4. 20 divided by 4 is 5
6. x>5
Answer:
C
Step-by-step explanation:
using the rules of exponents
•
×
= 
given
= 
multiply both sides by 
=
×
= 
since bases on both sides are a, equate the exponents, hence
n = 12 → C