Автор - flex2024

срочно!!!!!!!!!!!!!!!!!!!!​

Ответ

Автор - alesyaperova

1.

1) {m}^{3}  +( 5 {n)}^{3}  = (m + 5n) \ ( {m}^{2}  - 5mn + 25 {n}^{2} )

2)x( {y}^{2}  - 16x {}^{2}) =  \ x(y - 4x)(y + 4x) \ 3) - 5( {x}^{2}   - 6x +  9) =  \  - 5(x - 3) {}^{2}

4)7y(x + 2) - 42(x + 2) =  \ (x + 2)(7y - 42) \ 5)(100 -  {c}^{2} )(100 +  {c}^{2} )

2.

b( {b}^{2}  - 9) - ( {b}^{3}  +  {b}^{2}  + b -  {b}^{2}  - b \  - 1) =  \  {b}^{3}  - 9b -  {b}^{3}  + 1 =  - 9b + 1

3.

1)(9c - d)(9c + d) + 1(9c + d) =  \ (9c + d)(9c - d + 1) \ 2)(a + 4b) {}^{2}  - 1 =  \ (a + 4b - 1)(a + 4b + 1)

Остальное не знаю

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