An easy question from RD Sharma 4x 2 +4bx-(a 2 -b 2 )=0 solve than i will post solution
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Have a look at the image.The answer is a-b/2 or -(a+b)/2.
Hope this may help you
Regards,
Raj
Hope this may help you
Regards,
Raj
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given that
4x² + 4bx - (a²- b²) = 0
D = b² - 4ac
= (4b)² - (4)(4)(-a² +b²)
= 16b² + 16a² - 16b²
= 16a²
x = -b + √D / 2a (or) -b-√D / 2a
= -4b +√16a² / 2(4) (or) -4b - √16a² / 294)
= -4b - 4a / 8 = -(a+b) /2 (or) -4b + 4a / 8 = a-b / 2
4x² + 4bx - (a²- b²) = 0
D = b² - 4ac
= (4b)² - (4)(4)(-a² +b²)
= 16b² + 16a² - 16b²
= 16a²
x = -b + √D / 2a (or) -b-√D / 2a
= -4b +√16a² / 2(4) (or) -4b - √16a² / 294)
= -4b - 4a / 8 = -(a+b) /2 (or) -4b + 4a / 8 = a-b / 2
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