Express the following in a a+bi form.
(3 – i)(4 + 7i) – ((5 – i) – 2(1 – 3i))

Which expression is equivalent to 5r6141 2r+st6

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

4+(2+x) can you me solve this problem