- #1
Schaus
- 118
- 5
Homework Statement
√3x - 5 +2 = -3
Underlined is under square root.
√2x - 3 = -x + 3
Underlined is under square root.
Homework Equations
The Attempt at a Solution
√3x - 5 +2 = -3
-2 -2
(√3x - 5)2 = (-5)2
3x - 5 = 25
3x = 30
x = 10
Solution says no answer but I got one... I tried 3x - 5 ≠ 0 → x ≠5/3
2nd Question
√2x - 3 = -x + 3
(√2x - 3)2 = (-x + 3)2
2x - 3 = (-x + 3)(-x + 3)
2x - 3 = x2 - 6x + 9
0 = x2 - 8x + 12
0 = (x - 2)(x - 6)
x = 6
x = 2
Solution only says 2 not 6. I tried 2x - 3 ≠ 0 → x ≠ 3/2
Wondering what I did wrong.