IBM Company Numerical Ability Quadratic Equations

If 2x2 +12x +18 = 0;what is the value of x ?
1) 3 2) -3 3) -2 4) 2 5) More than one answer

Read Solution (Total 2)

2 x^2+12 x+18=0
2(x^2+6x+9)=0
x^2+6x+9=0
then x=-3 is the ans option 2
12 years agoHelpfull: Yes(8) No(1)

2 x^2+12 x+18=0
2(x^2+6x+9)=0
x^2+6x+9=0
(x+3)^2=0

so x=3 and x=-3..so more than one answer...option 5
11 years agoHelpfull: Yes(0) No(5)

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