Question

Evaluate the expression 4+√−9 and write the result in the form a+bi

Answer 1

Explanation:

4+√(-9) = 4 + √9√(-1)

= 4 + 3i

Answer 2

4 + 3i

Explanation:

i = sqrt(-1)

sqrt(-9) = 3 * sqrt(-1) = 3i

The 4 remains the same

4 + 3i