Question

Представьте в виде многочлена:
10*(m+5)+2*(-2m+3n)
7x*(4y-x)+4x(x-7y)
4a(7x-1)-7(4ax+1)
12(2-3m)+35m-9(m+1)

Answer 1

10*(m + 5) + 2*(-2m + 3n) = 10m + 50 - 4m + 6n = 6m + 6n + 50;

7x*(4y - x) + 4x(x - 7y) = 28xy - 7x² + 4x² - 28xy = -3x²;

4a(7x - 1) - 7(4ax + 1) = 28ax - 4a - 28ax - 7 = -4a - 7;

12(2 - 3m) + 35m - 9(m + 1) = 24 - 36m + 35m - 9m - 9 = 15 - 10m