Question

If `|(2x, 5),(8, x)| = |(6, -2),(7, 3)|`, then value of x is ______.

विकल्प

• 3

• ±3

• ±6

• 6

Answer 1

If `|(2x, 5),(8, x)| = |(6, -2),(7, 3)|`, then value of x is ±6.

Explanation:

We have `|(2x, 5),(8, x)| = |(6, -2),(7, 3)|`

⇒ 2x² – 40 = 18 + 14

⇒ 2x² = 72

⇒ x² = 36

∴ x = ±6