If x = \sqrt{10} + \sqrt{11} , y = \sqrt{10} - \sqrt{11} , then value of 7x 2 - 50xy + 7y 2 = ___________.

SSC CHSL 8 Jun 2022 Shift 1 Paper

Section: Quantitative Aptitude

Question : 62 of 100

Marks: +1, -0

If x =

{√{10}}

{√{11}}

, y =

{√{10}}

{√{11}}

, then value of 7x² - 50xy + 7y² = ___________.

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