Temat:Mnozenie sum algebraicznych
Uzupełnij:
(x-t)(........)=xy+xz-ty-tz
(3a-b)(......)=18a-4,5ac-6b+1,5bc
(7-x)(3-y)-..........=-3x-7y
(6x-1)(4-y)=y-4+...........
Matematyka 2 niebieska okladka9gimnazjum)
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(x-t)(y+z)=xy+xz-ty-tz
(3a-b)(6-1,5c)=18a-4,5ac-6b+1,5bc
(7-x)(3-y)-(21+xy)=21-7y-3x+xy-21-xy=-3x-7y
(6x-1)(4-y)=24x-6y-4+y=24x-5y-4