Answer:
B. x² +9
Step-by-step explanation:
Only B cannot be factored... the rest can be factored as follows
A. x² +9x = x (x+9)
C x² - 9 = x²-3² = (x+3)(x-3)
D 2x² +7x-9 = (2x+9)(x-1)
I did this quiz and it’s 16x^10+88x^5+121
Answer: The number can be used to express the change in temperature= -14
Step-by-step explanation:
Given: The temperature in evening dropped by
.
Thus, the change in temperature = 
Since the temperature in evening is dropped or decreased , thus in integers the change in temperature = 
Therefore, the number can be used to express the change in temperature= -14
She can only buy 3 which is 13.25x3=39.75 if you do times 4 than it will be 54 which is not enough