Question

Помогите алгебру. Только чётные числа

Answer 1

2.61          2)=3х+24       4)=5р-50        6)=3m+12n             8)=42p-105q

2.62       2)=bx-by        4)=6xy-2y²         6)=-12ab-6a²          8)=8m²+8mn

2.63      2)=-2x³+2x²-2x             4)=3b³-b²+4b         6)=-6a³b+21a²b²+3ab³

                     8)=3m³n+1,5 mn -2mn³

Answer 2

 2.61
2) 3*(x+8) = 3x+24
4) 5*(p-10) = 5p-50
6) (m+3n)*4 = 4m+12n
8) 3*(2p-5q)*7 = (6p-15q)*7 = 42p-105q

2.62
2) b*(x-y) = bx-by
4) 2y*(3x-y) = 6xy-2y^2
6) 3a*(-4b-2a) = -12ab-6a^2
8) 8m*(m+n) = 8m^2+8mn

2.63
2) (-2x)*(x^2-x+1) = -2x^3+2x^2-2x
4) (-1/3*b)*(-9b^2+3b-12) = 3b-1+4b
6) -3ab*(2a^2-7ab-b^2) = -6a^3b+27a^2b^2+3ab^3
8) 1/2=0,5 и 3/4=0,75
(-1,5m^2-0,75mn+n^2)*(-2mn) = 3m^3n+ 1,5m^2n^2-2mn^3