How do you solve #5 * [sqrt( a - 3 )] - 10 = 0#?

1 Answer
Apr 24, 2016

Answer:

Isolate the radical

Explanation:

#5sqrt(a - 3) = 10#

#sqrt(a - 3) = 2#

#(sqrt(a - 3))^2 = (2)^2#

#a - 3 = 4#

# a = 7#

Checking this solution in the original equation we find that it doesn't work. Thus, there is no solution to this equation; it has a solution set #{O/}#

Hopefully this helps!