( 4x )² = 28
4x = √28
4x = 2√7
[tex]x = \frac{ \not2 \sqrt{7} }{ \not4} \\ x = \frac{ \sqrt{7} }{2} ✓ [/tex]
(4x)²=28
4²×x²=28
16x²=28
x²=28/16=7/4
x²=√ 7/4=✓7/2
4x²=28
x²=28:4
x²=7
x=✓7
Sper că te-am ajutat!
