This is a problem of Difference-of-squares. We know that for a difference of squares

the factorization is given by:

To learn this you need to remember that a <em>difference</em> means <em>subtraction.</em> So applying those concepts we can solve this problem step by step.
Applying distributive property:

Applying distributive property again:

Simplifying:
<em>The correct answer is C</em>
Answer:
angle 4 is also 75 degrees
Step-by-step explanation:
Answer:
The answer is B
Step-by-step explanation:
Just took the test and got it right
Answer:
230%
Step-by-step explanation:
2x3/10=23/10=2.3x100%=230%