Question

раскройте скобки и упростите выражение: -3/4(1/3 m +n) - 1/4(3m+n)

Answer 1

-(3/4)*(1/3)=-(1/4).

Answer 2

- 3/4 * m/3 - 3n/4 - 3m/4 - n/4 = - m/4-3n/4 - 3m/4 - n/4 = -4m/4 - 4n/n = m-n