Answer:
(5 + 3i)(5 − 3i) = 34
Step-by-step explanation:
The multiplication of two identical binomials who have different symbol, can be solved using the factoring case of a difference of squares:

So, in this case:


Remember that 
So: 
We replace on the polynomial:

Answer:
d
Step-by-step explanation:
Answer: 18 (b)
Step-by-step explanation:
3x6=18
You just have to divide the amount spent by the number of golf balls.
$9.54 divided by 18 balls = $0.53 per golf ball
Answer: $516
Step-by-step explanation:
Just multiply 48x10.75