1. 4. 1 Nested Multiplication P3(x)=(a3(x-x2)+02(x-x1)+a1)(x-x0)+a(1.59 To evaluate P3(a) for a given value of c, start with the innermost grouping and form successively the quantities S3(x-x2) S1=S2(x-x1) +++ -t The quantity So is now P3(ar)1.4.1 Nested Multiplication