Let p = 2 + 5i and q = 3 − 4i. Calculate the following values and simplify to a + bi form. Homework Help ✎
p + q
p − q
p · q
Substitute the known values into the equation for p and q.
(2 + 5i) + (3 − 4i)
Combine like terms.
(2 + 3) + (5i − 4i)
5 + i
Is this in a + bi form? How can you tell?
Use the same method as part (a).
−0.56 + 0.92i
Use a generic rectangle to multiply the binomials.
26 + 27i