Subject
Quantitative Aptitude
Topic
Equation
If x2+ 2x -8-0, then x is either -4 or
If x2+ 2x -8-0, then x is either -4 or
ক)
2খ)
-2গ)
-1ঘ)
0Explanation
x2+ 2x -8-0 = x2 +4x-2x-8 =x(x+4)-2(x+4) =(x+4)(x-2) so, x=-4 or,x=2Related questions
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