What are the roots of the equation? 18x^2-9x-1=0 18x 2 −9x−1=0

Question

Iris · Answer

Answer:   Given, 18x² - 9x -1=0       on comparing with  ax²+bx+c=0  we get        a=18 , b= -9 and c= -1    now, apply formula  D = b²-4ac                                                                       D = (-9)² - 4(18)(-1)                              = 81 + 72                           =  153         So, here D > 0      =  >     Roots     are     real     and     unequal

Rylee · Answer

large{ colorbox{black}{ underline{ underline{ bf{ orange{☆• Be Brainly •☆}}}}}}   USING FORMULAE ' B^2 - 4ac     (-9)^2 - 4(18)(-9) = 0    81 + 648 > 0     729 > 0       ROOTS     ARE     REAL     AND     UNEQUAL

Rose

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