1) 4(x+3)-2(3-x)-x-4 2) 4ac+3ac-13ac

Question

1) 4(x+3)-2(3-x)-x-4 2) 4ac+3ac-13ac

Answer 1

Ответ:

4(x+3)-2(3-x)-x-4=

=4х+12-6+2х-х-4=

=5х+2

4ac+3ac-13ac=-6ас