Question

Упростите пж срочно сдавать через 10 мин​

Answer 1

Ответ:

1)

$15 x^{4} - 5x {}^{2} + 30x$

2)

$8x {}^{2} - 5x + 32x - 20 = 8 {x}^{2} + 27x - 20$

3)

$24 {a}^{2} - 9ab - 32ab + 12 {b}^{2} = 24 {a}^{2} - 41ab + 12 {b}^{2}$

4)

${x}^{3} - 4 {x}^{2} + 3x - 5 {x}^{2} + 20x - 15 = x {}^{3} - 9 {x}^{2} + 23x-15$