Question

pls solve ques 15.
it is f class 10

Answer 1

$9 {x}^{2} - 6 {a}^{2} x+ ( {a}^{4} - {b}^{4} )=0 \\ 9 {x}^{2} - (3( {a}^{2} + {b}^{2} ) + 3( {a}^{2} - {b}^{2} ))x + ( {a}^{2} + {b}^{2} )( {a}^{2} - {b}^{2} )=0 \\ 9 {x}^{2} - 3( {a}^{2} + {b}^{2} ) x- 3( {a}^{2} - {b}^{2} )x + ( {a}^{2} + {b}^{2} )( {a}^{2} - {b}^{2} )=0 \\ 3 x(3x - ( {a}^{2} + {b}^{2} )) - ( {a}^{2} - {b}^{2} )(3x - ( {a}^{2} + {b}^{2} )) =0\\ (3x - ( {a}^{2} + {b}^{2} ))(3x - ( {a}^{2} - {b}^{2} )) =0\\ if \: 3x - ( {a}^{2} - {b}^{2} ) = 0 \\ x = \frac{ {a}^{2} - {b}^{2} }{3} \\ and \: 3x - ( {a}^{2} + {b}^{2} ) = 0 \\ x = \frac{ {a}^{2} + {b}^{2} }{3}$
Heyy friend your answer is here