Step-by-step explanation:
Here we can see the both numbers are 7 with different powers so we can sum up the powers


Answer is C because it is proportion.
I think the answer should be 0 but I’m not so sure!
Answer:
I got -0.09...
although I could be wrong, don't take my word for it, it's been a while lol
Answer:
(cx)2-(dy) 2
Step-by-step explanation:
Formula a2-b2= (a+b) (a-b)
By given formula
(cx)2 - (dy) 2 = (cx+dy) (cx-dy)