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If 152x(x+4)(x3) = R(x+4) ...

If 152x(x+4)(x3) = R(x+4) 97(x3), find the value of R

A.

327

B.

237

C.

237

D.

327

Correct answer is C

152x(x+4)(x3) = R(x+4) + 97(x3)

 15-2x = R(x - 3) +9(x +4)/7

Put x =-4, we have 15 -2(-4) = -7R

23 -7R;

R = 23/7