Question

in this question i have founnd that p(x) = -45/64 and g(x) = -108 i just wanna know how to equate them p(x) = ax^3 +3x^2 -3 and g(x) = 2x^3 -5x+a when divided by x-4 gives the same remainder ​

Answer 1

Divident=Divisor×Quotient+Remainder