3(2x-y)× 2(x+4y)-5(2x-3y) при х= 3 у= -1

Question

3(2x-y)× 2(x+4y)-5(2x-3y) при х= 3 у= -1

Answer 1

3(2*3-(-1))× 2(3+4(-1))-5(2*3-3(-1)) =-87

Answer 2

Сама решила не списывала

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