`16x^2-(4x-3)^2=0`
`<=>(4x-4x+3)(4x+4x-3)=0`
`<=>3.(8x-3)=0`
`<=>8x-3=0`
`<=>8x=3`
`<=>x=3/8`
Vậy `S={3/8}`
`6)16x^2-(4x-3)^2=0`
`<=>(4x)^2-(4x-3)^2=0`
`<=>(4x-4x+3)(4x+4x-3)=0`
`<=>3(8x-3)=0`
`<=>8x-3=0`
`<=>8x=3`
`<=>x=3/8`
Vậy `S={3/8}`
16x2 - (4x - 3)2 = 0
<=> (4x - 4x + 3) (4x + 4x - 3) = 0
<=> 3 . (8x - 3) = 0
<=> 8x - 3 = 0
<=> 8x = 3
<=> x = 3/8
vậy S = [3/8]