Answer:

Step-by-step explanation:
Given
← factorise numerator and denominator
2x² - 18 ( factor out 2 from each term )
= 2(x² - 9) ← difference of 2 squares
= 2(x - 3)(x + 3)
and
x² + 4x - 21 = (x + 7)(x - 3) , then
=
← cancel common factor (x - 3) on numerator/ denominator
= 
Answer:
decrease
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
The degree of a polynomial is usually the highest degree in the function.
The answer is A. You add the extra 10 feet to however high the bird flew from there
Answer:
i cant uderstand anything
Step-by-step explanation: