if 49 x^2-b=(7x+1/2)×(7x-1/2) find value of b
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( A ) 1/(2)^(1/2)
( B ) (1/2)
( C ) (1/4)
( D ) 0
( B ) (1/2)
( C ) (1/4)
( D ) 0
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Hey!!
49x^2-b= (7x+1/2)× ( 7x-1/2)
=> 49x^2-b = 14x - 1/4
=> 49x^2-14x+ 1/4 = b
=> b = 49x^2 -14x+1/4
49x^2-b= (7x+1/2)× ( 7x-1/2)
=> 49x^2-b = 14x - 1/4
=> 49x^2-14x+ 1/4 = b
=> b = 49x^2 -14x+1/4
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