1. The problem statement, all variables and given/known data Evaluate the double integral 4x^3 dA, where R is the region bounded by the graphs of y=(x-1)^2 and y= -x+3. 2. Relevant equations None. 3. The attempt at a solution The answer in the book is 72/5. But I got 45 as the answer. Here's my work: (x-1)^2= -x+3 x^2-2x+1= -x+3 x=2, -1 y=1, 4. double integral of 4x^3 dx dy from -1 to 2 for dx and from 1 to 4 for dy integral of x^4 (evaluate from -1 to 2) dy from 1 to 4 for dy =45 Is my answer correct or the book's answer is right?