How would you solve sqrt(x+10)=-3?

2 Answers

In the set of real numbers the equation sqrt(10+x)=-3 has no solutions because the left part is always positive or equal to zero for x=-10 and the right part is always negative.

If you see the graph of both functions y=sqrt[x+10] (red line) and y=-3 (blue line)
it is apparent that no real solutions exist.

enter image source here

Feb 27, 2016

x = -1

Explanation:

Well

sqrt(x+10) = -3

Square both sides

x +10= 9

x = -1
So

sqrt 9 = +-3