# Thread:

1. Affirmative, human.

2. Originally Posted by maddas
Affirmative, human.

how would i solve this problem? and if i did it right would the answer be (b) ?

3. Originally Posted by bringash

how would i solve this problem? and if i did it right would the answer be (b) ?
Dear bringash,

For $\sqrt{5x}$ to be defined, $x\geq{0},$-----(1)

For $\sqrt{x+4}$ to be defined, $x\geq{-4}$------(2)

By 1 and 2,

$x\geq{-4}$
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