Question

(2x-8)²-6=0

Answer 1

`<=>` \(\left[{}\begin{matrix}2x-8=\sqrt{6}\\2x-8=-\sqrt{6}\end{matrix}\right.\)

`<=>` \(\left[{}\begin{matrix}x=4+\dfrac{\sqrt{3}}{2}\\x=4-\dfrac{\sqrt{3}}{2}\end{matrix}\right.\)

Answer 2

=> (4x - 64) - 6 = 0

=> 4x - 64 = 0 + 6 = 6

=> 4x = 64 +  6 = 70

=> x = 70 x 4 = 280