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and 3 are the wo rools of the qadraiof a and b.c equation a+x +b-0,then fnd he ralas |
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Answer» If x = -2/3, x = 3 are roots, then the eqn will be (x-2/3)(x-(-3))=0⇒ (x-2/3)(x+3) = 0⇒ x²-(2/3)x+3x-2 = 0⇒ 3x²-2x+9x-6=0⇒ 3x²+7x-6=0 is the required eqn. Compare the eqn with ax²+7x+b=0 Therefore, a=3, b= -6 |
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