Раскройте скобки:1. c(2a+b)=2. 2a(3b+5)=3.-c(4c+1)=4.3x(4y-z)=5.-z(x-y)=6.(m-3n)(-a)=7.m(1-m)=8.-x(2x+5)=9.(-a-4bc)(-b)=

$c(2a + b) = 2ac + bc$

$2a(3b + 5) = 6ab + 10a$

$-c(4c + 1) = -4c^2 - c$

$3x(4y - z) = 12xy - 3xz$

$-z(x - y) = -zx + zy$

$(m - 3n)(-a) = -ma + 3n a$

$m(1 - m) = m - m^2$

$-x(2x + 5) = -2x^2 - 5x$

$(-a - 4bc)(-b) = ab + 4b^2c$