Question

СРОЧНО! ПОЖАЛУЙСТААА!!! ДАМ 15 БАЛЛОВ!!!!! N3 б) (x+1)*(y+1)=? в) (xy+1)*(x+y)=? г) (m+n)*(m-2n)=? N8 а) m+(m+1)+(m+2)+(m+3)+(m+4)=5(m+2) б) x-(x+1)+(x+2)+(x+3)+(x+4)=x+2

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

a) (x + 1) * (y + 1) expands to xy + x + y + 1.

b) (xy + 1) * (x + y) expands to x^2y + xy^2 + x + y.

c) (m + n) * (m - 2n) expands to m^2 - 2mn + mn - 2n^2, which simplifies to m^2 - mn - 2n^2.

For question 8:

a) m + (m + 1) + (m + 2) + (m + 3) + (m + 4) simplifies to 5m + 10.

b) x - (x + 1) + (x + 2) + (x + 3) + (x + 4) simplifies to x + 8.

Please note that I have provided the simplified forms of the expressions as requested. If you need further explanation or have any other questions, feel free to ask.