Question

1. (5x-2)*(x²-x-1),
2. (4n²-6np+9p²)(2n+3p).

Answer 1

Ответ:

$(5x - 2)(x {}^{2} - x - 1) \\ 5x( {x}^{2} - x - 1) - 2(x {}^{2} - x - 1) \\ 5x {}^{3} - 5x {}^{2} - 5x - 2x {}^{2} + 2x + 2 \\ 5 {x}^{3} - 7 {x}^{2} - 3x + 2$

$(4n {}^{2} - 6np + 9 {p}^{2} )(2n + 3p) \\ (2n) {}^{3} + (3p) {}^{3} \\ 8n {}^{3} + 27p {}^{3}$