Question

(-11+ √-4) + (4+ √-36)

Answer 1

Answer:

$-7 + 8i$

Step-by-step explanation:

$(-11 + \sqrt{-4}) + (4 + \sqrt{-36}) = (-11 + 2\sqrt{-1}) + (4 + 6\sqrt{-1})$

We know $\sqrt{-1}$ is a complex number and is defined by $i$

∴$(-11 + \sqrt{-4}) + (4 + \sqrt{-36}) = (-11 + 2i) + (4 + 6i) = -7 + 8i$