square root problem?

2 ⤊

square root of x+5= 1+ the square root of x-2

2007-09-05 09:30:14 · 3 answers · asked by brandtster 2 in Science & Mathematics ➔ Mathematics

sqrt(x+5) = 1 + sqrt(x-2)
x+5 = 1+ 2(sqrt(x-2) +x-2
6 = 2sqrt(x-2)
3 = sqrt(x-2)
9 = x-2
11=x

2007-09-05 09:38:27 · answer #1 · answered by ironduke8159 7 · 1⤊ 0⤋

Put squares on both sides and you get:

x + 5 = 1 + 2sqrt(x-2) + x - 2 or

sqrt(x-2) = 3 put the squares again and you get

x-2 = 9 or x = 11

2007-09-05 16:38:52 · answer #2 · answered by Christophe G 4 · 1⤊ 0⤋

OMG thats hard, what kind of question is that???

2007-09-05 16:41:42 · answer #3 · answered by Sarah <3 1 · 0⤊ 1⤋