Question

Помогите!Очень срочно!

Answer 1

$1) \: 2(x - 5) = 2 \times x - 2 \times 5 = 2x - 10 \\ \\ 2) \: 3(8 + a) = 3 \times 8 + 3 \times a = 24 + 3a \\ \\ 3) \: 5(4 - 6y) = 5 \times 4 - 5 \times 6y = 20 - 30y \\ \\ 4) \: 10(2b - 1) = 10 \times 2b - 10 = 20b - 10 \\ \\ 5) \: 4(3 + 3x - m) = 4 \times 3 + 4 \times 3x - 4 \times m = 12 + 12x - 4m \\ \\ 6) \: 6(5y - 2b + 10) = 6 \times 5y - 6 \times 2b + 6 \times 10 = 30y - 12b + 60 \\ \\ 7) \: 8(3x + a - 4) = 8 \times 3x + 8a - 8 \times 4 = 24x + 8a - 32$

Answer 2

1)2(x-5)=2x-2*5=2x-10
2)3(8+a)=3*8+3a=24+3a
3)5(4-6y)=5*4-5*6y=20-30y
4)10b(2b-1)=10*2b-10=20b-10
5)4(3+3x-m)=4*3+4*3x-4m=12+12x-4m
6)6(5y-2b+10)=6*5y-6*2b+6*10=30y-12b+60
7)8(3x+a-4)=8*3x+8a-8*5=24x+8a-32