Question

If x^2 (x^2-1 ) = 49×48 ,what's x?​

Answer 1

Step-by-step explanation:

x²(x² - 1) = 49 * 48

=> x²(x² - 1) = 7² *(7² - 1)

Comparing L.H.S with the R.H.S.

x² = 7². or x² - 1 = 7² - 1

=> x = 7. => x = 7

Therefore,

Required value of x is 7

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