Given that,On expanding both the determinants we get,⇒ 2x2 – 40 = 18 – (-14)⇒ 2x2 – 40 = 32⇒ 2x2 = 72⇒ x2 = 36⇒ x2 = ±6

Q. 55.0( 1 Vote )

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Answer :

Given that,

On expanding both the determinants we get,

⇒ 2x² – 40 = 18 – (-14)

⇒ 2x² – 40 = 32

⇒ 2x² = 72

⇒ x² = 36

⇒ x² = ±6

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