e) `(x+2)^2 + 2(x-4) = (x-4)(x-2)`
`<=> (x+2)^2 + (x-4)(2-x-2) =0`
`<=> (x+2)^2-x.(x-4) =0`
`<=> x^2+4x+4 - x^2 + 4x =0`
`<=> 8x + 4 =0`
`<=> x= -1/2`
g) `(3x+2)^2 - (3x-2)^2 = 5x+38`
`<=> 9x^2 + 12x + 4 - 9x^2 + 12x - 4 = 5x+38`
`<=> 24x = 5x+38`
`<=> x = 2`
i) `(x+3)^2 - (x-3)^2 = 6x+ 18`
`<=> x^2 + 6x + 9 - x^2 + 6x - 9 = 6x+18`
`<=> 12x = 6x+18`
`<=> x=3`
l) `(x+1)(x^2-x+1) - 2x = x(x-1)(x+1)`
`<=> x^3 + 1 - 2x = x^3 - x`
`<=> x=1`