Check weather the following equation is quadratic or not?
(x-3) (2x-1)=x(x+5)
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( x-3 )(2x+1) = x(x+5)
= 2x²- x - 6x - 3 = x² + 5x
= 2x² - x - 6x - 3 - x² - 5x = 0
= x² - 11x + x - 3 = 0
= x² - 10x - 3 = 0
= ax²+bx+c = 0
= a = 1 , b = -10 , c = -3
it is in the form of ax²+bx+c = 0
so it is a Quadratic equation.
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#Ravalika Rajula
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