Which is the product of the following numbers?
−4 (−3 + 9i )( 5 − 6i )
1 answer:
expand (- 3 + 9i )(5 - 6i ) using the FOIL method
= - 4 (- 15 + 18i + 45i - 54i² ) → i² = (√- 1 )² = - 1
= - 4 (- 15 +63i + 54 )
= - 4 (39 + 63i ) ( distribute by - 4 )
= - 156 - 252i ← in standard form
You might be interested in
Answer:
A, B, and D good luck
Step-by-step explanation:
Answer:
The third one
Step-by-step explanation:
Solve is in the picture
Good luck :)
To avoid distortion of extreme
values, a good indicator would be the
B. median.
The 2nd option is correct ! Hope this helped