Lets take a look at the options first.
option 1 and option 4 are not possible as (8x) (8x) would give us 64x^2, which is not what we want.
we’re left with option 2 & 3. when expanded, option 2 will look like :
16x^2 - 40x - 10x + 25
= 16x^2 - 50x + 25
however, we do not want the 50x. so the answer is option 3, (4x-5) (4x+5)
if you don’t want to find the answer using expanding, there is also another method of expanding.
(a+b)^2 = a^2 - b^2
in this case, 16x^2 will be a^2 and 25 will be b^2. not sure whether you’ve learn this but yea.
Answer:
linear: 5s
quadratic: 50s
log-linear: 0.75 s
cubic: 500s
Step-by-step explanation:
Let
be the running time associated with the input of sizes 
If the running time is linear

If the running time is quadratic

If the running time is log-linear

If the running time is cubic:

Answer:
She must be sure there is at least $135 in her bank account for the purchase.
She must check to see if any automatic payments are scheduled for her account.
Step-by-step explanation:
just finished that assignment