упростите выражение (3х+2)^2-2(х-1)^2-7х^2 - №28234516

упростите выражение (3х+2)^2-2(х-1)^2-7х^2
- Предмет:
  Алгебра
- Автор:
  manuelawade
- 6 лет назад

Ответы 1

(3х+2)^2-2(х-1)^2-7х^2=9х^2+12х+4-2(х^2-2х+1)-7х=9х^2+12х+4-12х^2+4х-2-7х^2=16х+2
- Автор:
  baileygwjp
- 6 лет назад
- 0
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