Solve :- 25x^2 - 30x + 9 = 0
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Answered by
61
Solution :
25x² - 30x + 9 = 0
Splitting the middle term, we get
=> 25x² - 15x - 15x + 9 = 0
=> 5x( 5x - 3 ) - 3( 5x - 3 ) = 0
=> ( 5x - 3 )( 5x - 3 ) = 0
=> 5x - 3 = 0 or 5x - 3 = 0
=> x = 3/5 or x = 3/5
••••••
Or
25x² - 30x + 9 = 0
=> ( 5x )² - 2×( 5x ) × 3 + 3² = 0
=> ( 5x - 3 )² = 0
=> 5x - 3 = 0 or 5x - 3 = 0
=> x = 3/5 or x = 3/5
•••••
25x² - 30x + 9 = 0
Splitting the middle term, we get
=> 25x² - 15x - 15x + 9 = 0
=> 5x( 5x - 3 ) - 3( 5x - 3 ) = 0
=> ( 5x - 3 )( 5x - 3 ) = 0
=> 5x - 3 = 0 or 5x - 3 = 0
=> x = 3/5 or x = 3/5
••••••
Or
25x² - 30x + 9 = 0
=> ( 5x )² - 2×( 5x ) × 3 + 3² = 0
=> ( 5x - 3 )² = 0
=> 5x - 3 = 0 or 5x - 3 = 0
=> x = 3/5 or x = 3/5
•••••
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16
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