1.

If the equations x2+ax+12=0,x2+bx+15=0 and x2+(a+b)x+36=0 have a common positive root, then the value of a+b is equal to

Answer»

If the equations x2+ax+12=0,x2+bx+15=0 and x2+(a+b)x+36=0 have a common positive root, then the value of a+b is equal to



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