Question

Which expressions are equivalent to the given expression? (- sqrt -9 + sqrt -4) - (2 sqrt 576 + sqrt -64)

Answer 1

The equivalent equation is -9i-48

Explanation:

i = √-1, i² = -1

Therefore (-√-9 + √-4) - (2√576 +√-64)

=(-√(9*(-1)) + √(4*(-1))) - (2 *24 + √(64 *(-1)))

= (-3i + 2i) - (2 * 24 + 8i)

= -i - 48 -8i

= -9i - 48