Hello!

Can someone please help me answer this problem √(t+4)=-2? and explain to me how the answer of a square root can be negative? Lots of thanks!

There is no real solution to this

Squaring both sides, we have that

t + 4 = 4

Subtract 4 from both sides

t = 0

But.......subbing this back into the original equation means that

√] 0 + 4] = -2

√4 = -2

2 = -2

Which is false