Question

What is the solution of √-4x=100? A) x = –2500 B) x = –50 C) x = –2.5 D) no solution

Answer 1

First we raise both members of the equality to the square:
 (√-4x) ^ 2 = (100) ^ 2
 Then, we solve:
 -4x = 10000
 We cleared x in the last instance
 x = 10000 / (- 4)
 x = -2500
 answer:
 the solution of √-4x=100 is 
 A) x = –2500