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assembly language help

jwilt (54)
not sure if this is the right place for assembly language but if anyone could help at all it would be greatly appreciated.
my assignment is : val1 = 35 val2 = 17 val3 = 86 val4 = 52
(a+b)*2-(c-d)*3 + 5^2.
so far this is what I have but it doesn't seem right
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TITLE MASM Template						(main.asm)

; Description:
; 
; Revision date:

INCLUDE Irvine32.inc
.data
myMessage BYTE "MASM program example",0dh,0ah,0
    val1    dword	 35
    val2    dword	 17
    val3    dword	 86
    val4	  dword	 52
    ans	  dword	 ?

.code
main PROC
	call Clrscr 

	mov	  eax,val1			 ;	Start with 35
	mov	  ecx,val3			 ;	86
	add	  eax,val2			 ;	35+17 stored in eax
	add	  eax,eax			 ;	multiply sum by two
	sub	  ecx,val4			 ;	86-52 stored in ecx
	mov	  edx,ecx                        
	add	  ecx,ecx
	add	  ecx,edx

	call	  DumpRegs

	mov	 edx,offset myMessage
	call WriteString

	exit
main ENDP

END main
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