<span>m, because triangle ABC is similar to triangle EDC (by 3 congruent angles).</span>
The answer is -65, hope this helped!
Answer: 1/3
<u>Step-by-step explanation:</u>
When adding or subtracting fractions, they must have the same denominator.

Answer:

To simplify first factorize both the numerator and the denominator
For the numerator
5x² + 20xy + 20y²
Factor 5 out
5 ( x² + 4xy + 4y²)
Using a² + 2ab + b² = ( a + b)²
The numerator is
5( x + 2y)²
For the denominator
x² - xy - 6y²
Rewrite -xy as a difference
x² + 2xy - 3xy - 6y²
Factorize
We have the denominator as
( x + 2y)( x - 3y)
So we now have
<h2>

</h2>
Simplify
<h2>

</h2>
We have the final answer as
<h2>

</h2>
Hope this helps you