If the co-efficient of x^7 and x^8 in the expansion of (2+ x 3 )^n are equal, then the value of n is equal...

Question

If the co-efficient of x^7 and x^8 in the expansion of (2+ x 3 )^n are equal, then the value of n is equal to________.

Accepted Answer

55

JEE Main 2021 Mathematics question