Question

Simplify and Solve

3. 30 square root of -25 * 8 square root of -49

4. 6 sqaure root of -64 + 12 square root of -36

Answer 1

3. 30 square root of -25 * 8 square root of -49

$$30 \times \sqrt{(-25)} \times 8 \times \sqrt{(-49)} = 30 \times 5i \times 8 \times 7i = -8400$$

4. 6 square root of -64 + 12 square root of -36

$$6 \times \sqrt{(-64)} + 12 \times \sqrt{(-36)} = 6 \times 8i + 12 \times 6i = 120i$$