Respuesta :
The answer is B : the square root of 25 is 5, because 5x5=25.
So it's 18-5....
Hope I helped :)
remember
(√(mn))=(√m)(√n)
18-√(-25)
√(-25)=(√-1)(√25)=(√-1)(5)=5√-1
18-5√-1
remember that √-1=i
18-5i
B is the answer
(√(mn))=(√m)(√n)
18-√(-25)
√(-25)=(√-1)(√25)=(√-1)(5)=5√-1
18-5√-1
remember that √-1=i
18-5i
B is the answer