Ответ:
1) (t+x)(m+y) = tm+xm+ty+xy
2) (x-4)(p+1) = xp-4p+x-4
3) (y - 3)(4+7) = 4y-12+7y-21 =4y+7y-33
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Ответ:
1) (t+x)(m+y) = tm+xm+ty+xy
2) (x-4)(p+1) = xp-4p+x-4
3) (y - 3)(4+7) = 4y-12+7y-21 =4y+7y-33