Q5 of 45 Page 1

Ifwrite the value of x.

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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