Manipal MET2018MathematicsBasics of Mathematics
The equation 3^ |3 x+4| =9^ 2 x-2 , x 0 has the solution
Options
- A7 8
- B8 7
- C-3 4
- DNone of these
Correct answer
D. None of these
Step-by-step solution
3^ |3 x+4| =9^ 2 x-2 , x 0 When x 0 , then aligned & & |3 x+4| & =3 x+4 & & 3^ 3 x+4 & =3^ 2(2 x-2) & & 3 x +4 & =4 x -4 & & x & =8 aligned