Answer:
I think is B
because its the one that sounds good
Answer:
-2x² + 15
Step-by-step explanation:
Step 1: Add like terms
4x² - 6x² = -2x²
-10x + 10x = 0
3 + 12 = 15
Step 2: Rewrite
-2x² + 15

which is undefined when

or

. The answer is then the third choice.
Answer:
B
Step-by-step explanation:
:)
(:
:)
(:
Hope this helps!