1) (а+3-1,2)(а+3+1,2)
2)(m-1-11)(m-1+11)
3)(1,5-m+0,04)(1,5+m-0,04)
4)(d-9-a-4)(d-9+a+4)
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Answers & Comments
1) (а+3-1,2)(а+3+1,2)
2)(m-1-11)(m-1+11)
3)(1,5-m+0,04)(1,5+m-0,04)
4)(d-9-a-4)(d-9+a+4)