sqrt(2x + 3) - 5 = -2
2007-10-19 10:00:19 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
sqrt(2x + 3) - 5 = -2
now unwrap it:
(((-2+5)^2)-3)/2 = x
now simplify using arithmetic:
x = 3
2007-10-19 10:03:31 · answer #1 · answered by 1,1,2,3,3,4, 5,5,6,6,6, 8,8,8,10 6 · 0⤊ 1⤋
X is 3
2007-10-19 17:15:01 · answer #2 · answered by awesome 5 · 0⤊ 0⤋
sqrt(2x + 3) - 5 = -2
sqrt(2x + 3) = 3
2x + 3 = 9 {square both sides}
2x = 6
x = 3
When you square both sides during a solution, be careful that you did not get an extraneous root
sqrt(6 + 3) - 5 = - 2
3 - 5 = - 2
- 2 = - 2
2007-10-19 17:09:50 · answer #3 · answered by kindricko 7 · 0⤊ 0⤋
sqrt(2x+3)=3
2x+3 = 9
2x = 6
x = 3
2007-10-19 17:03:57 · answer #4 · answered by norman 7 · 0⤊ 1⤋
2x+3=(5-2)^2
2x+3 = 9
2x= 6
x=3
2007-10-19 17:04:49 · answer #5 · answered by Anonymous · 0⤊ 1⤋