Question

Simplify this 3x – (8/x) = 2​

Answer 1

Solution :

$\: \: \: \: \: \: \: \: \: \:3x - \frac{8}{x} = 2$

$= > \frac{ {3x}^{2} - 8}{x} = 2$

$= > {3x}^{2} - 8 = 2x$

$= > {3x}^{2} - 2x - 8 = 0$

$= > {3x}^{2} - 6x + 4x - 8 = 0$

$= > 3x(x - 2) + 4(x - 2) = 0$

$= > (x - 2)(3x + 4)$

$= > x - 2 = 0 \: \: \: \: or \: \: \: \: 3x + 4 = 0$

$= > x = 2 \: \: \: \: or \: \: \: \: 3x = - 4$

$= > x = 2 \: \: \: \: or \: \: \: \: x = \frac{ - 4}{3}$

Answer 2

Answe

=>3x

2

−8=2x

=>3x

2

−2x−8=0

=>3x

2

−6x+4x−8=0

=>3x(x−2)+4(x−2)=0

=>(x−2)(3x+4)=>(x−2)(3x+4)

=>x−2=0or3x+4=0

=>x=2or3x=−4

=>x=2orx=

3

−4