Question

4x la a doua egal cu 28​

Answer 1

Salut!

Răspuns:$\frac{ \sqrt{7} }{2}$✅

( 4x )² = 28

4x = √28

4x = 2√7

$x = \frac{ \not2 \sqrt{7} }{ \not4} \\ x = \frac{ \sqrt{7} }{2} ✓$

Answer 2

(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!