Answer:

( ⅔ × x) × 2x = 14

⁴/3 x² = 14

x²= 14 × ¾

x² = 7 × ³/2

x² = 7 × 3 / 2

x² = 21/2

x = √ 21/2 or x = - √ 21/2

x= √ 42/2 or x = - √ 42/2

hope it helps goodluck:>>