Question

write the product in standard form. (2+3i)(2-i)

Answer 1

To multiply (a+b)(c+d) you use distributive property a couple of times
A(c+d)+b(c+d)

Answer 2

That A is suppose to be a

Answer 3

a(c+d)+b(c+d) *

Answer 4

^os bug

Answer 5

ac+ad+bc+bd

Answer 6

Also recall \[i \cdot i= i^2=-1\]