I am unable to solve such questions...
 

Asked by nitishkrnehu09 | 18th Nov, 2017, 09:50: PM

Expert Answer:

begin mathsize 16px style straight y equals 2 straight x cubed plus ax plus straight b
straight y equals 2 straight x cubed plus cx plus straight d
solving space together
2 straight x cubed plus ax plus straight b equals 2 straight x cubed plus cx plus straight d
straight x equals fraction numerator straight d minus straight b over denominator straight a minus straight c end fraction...... left parenthesis 1 right parenthesis
now space it space is space given space that space it space has space no space solution
rightwards double arrow straight a minus straight c equals 0........ since space eqn space left parenthesis 1 right parenthesis space will space be space not space defined space at space straight a minus straight c equals 0
so
open parentheses straight a minus straight c close parentheses squared plus straight b minus straight d..... becomes
space 0 space plus straight b minus straight d
now space max space value space straight b minus straight d space can space be space is space 6 minus 1 equals 5 end style
 
 
With practice, you will be able to solve such sums,
keep practising there are many good books available in market solve them.
they have stepwise solution provided.  

Answered by Arun | 1st Dec, 2017, 05:42: PM