Perform Operations with Square Roots of Negative Numbers
Perform the Indicated

Multiple Choice

Perform Operations with Square Roots of Negative Numbers
Perform the indicated operations and write the result in standard form.
- $5 \sqrt { - 81 } + 3 \sqrt { - 4 }$

A) $51 \mathrm { i }$
B) $- 51$
C) 51
D) $- 51 \mathrm { i }$