Question 143

If $$(2x-5)^3+(x-4)^3+(x-11)^3=3(2x-5)(x-4)(x-11)$$ then what is the value of x ?

Solution

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If we go by options one by one. Let us take the value as 5.

RHS$$=5^3+1^3-6^3=125+1-216=-90.$$

and 

LHS$$=3×5×1×-6=-90.$$

So, A is correct choice.

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