Question

3m+35n+8(3m-n) при m n =4 17(3c+5d)+6c-28dпри с d =2

Answer 1

3*4+3*4+8 (3*4-4)
12+12+64=40

17(3*2+5*2)+6*2-28*2
17*16+12-28=272+16=288