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Автор - karina01896

помогите решить хотя несколько очень срочно ❤️

Ответ

Автор - сашасерый5

 {4x }^{2}  - 9 = (2x - 3)(2x + 3)

1 - 81x^{4}  = (1 - 9x^{2} )(1 + 9 {x}^{2} )

 {219}^{2}  -  {119}^{2}  = (219 - 119)(219 + 119) = 100 times 338 = 33800

 ({x - 3})^{2} - x^{4}  = (x - 3 -  {x}^{2} )(x - 3  + {x}^{2} )

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