005: Find the values of a and b, if...
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005: Find the values of a and b, if 2 and 3 are zeroes of x + ax + bx - 30.

11th - 12th Class
Maths
Solution
129
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4.0 (1 ratings)
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Date ( x^{3}+a x^{2}+b x-30=0 ) 200000283 " [ begin{array}{l} (2)^{3}+4 a+2 b-30=0 2 a+b-11=0 quad-(1) (3)^{3}+9 a+3 b-30=0 3 a+b-1=0-10 (11)-(1) end{array} ] ( Rightarrow quad a+10=0 ) ( Rightarrow a=-10 ) Substituting ( a=-10 ) in [ begin{array}{r} -20+6-11=0 -6=20+31 end{array} ]
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