Question

Solve quadratic equation by completing the square 9x²=4 please help me answer this

Answer 1

Answer:

$9 {x}^{2} - 4 = 0$

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

$3x - 2 = 0$

$3x = 2$

$x = \frac{2}{3}$

AND

$3x + 2 = 0$

$3x = - 2$

$\times = - \frac{2}{3}$

Answer 2

9x²-4=0

or,(3x)² +2*3x*3 +(3)² -5 = 18x -5

or,(3x+3)² = 18x

either,3x+3= 18x or, 3x+3=-18x

or, 15x=3 or, 21x=-3

or, x=1/5 or, x=-1/7