How do you solve #sqrt(x+10)=-3#?
1 Answer
May 2, 2016
This has no solution.
Explanation:
The left hand side denotes the principal square root of
If
If
Note that the normal way to attempt to solve such an equation would be to start by squaring both sides, giving:
#x+10 = 9#
and hence:
#x = -1#
Then the left hand side of the original equation is:
#sqrt(x+10) = sqrt(-1+10) = sqrt(9) = 3 != -3#