A complex number has a real part and an imaginary part: a + bi.
Try it
(2 + 3i) + (1 + 4i)
Real with real, imag with imag: 3 + 7i.
Try it
(1 + i)(2 − i)
FOIL: 2 − i + 2i − i² = 2 + i + 1 = 3 + i.
A complex number has a real part and an imaginary part: a + bi.
(2 + 3i) + (1 + 4i)
Real with real, imag with imag: 3 + 7i.
(1 + i)(2 − i)
FOIL: 2 − i + 2i − i² = 2 + i + 1 = 3 + i.