Math Question: √x+4=3 Where x+4 are both under the sr sign?

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2007-02-22 03:38:54 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

sq r(x+4)=3
[sq r(x+4)]^2 =3^2
x+4 =9
x=9-4
x=5

2007-02-22 05:09:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋

sqrt(x + 4) = 3
x + 4 = 9
x = 5

2007-02-22 11:56:22 · answer #2 · answered by Sherman81 6 · 0⤊ 0⤋

squaring both sides, we get
x+4 =9
therefore x=5

2007-02-22 11:42:44 · answer #3 · answered by UnENG 3 · 0⤊ 0⤋