Respuesta :

The answer is B : the square root of 25 is 5, because 5x5=25. So it's 18-5.... Hope I helped :)
apologiabiology
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