fi d the value of abc fir the following quadric equation by comparing with standard form:- x² - 5x - 36 = 0
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x
2
−5x−36=0
∴x
2
−(9−4)x−36=0
∴x
2
−9x+4x−36=0
∴x(x−9)+4(x−9)=0
∴(x−9)(x+4)=0
∴x=9 or x=−4
∴ The roots of the given equation are 9 and −4.
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