Question

what are these ? [ ]

Answer 1

brackets. they work just like parenthesis

Answer 2

Square brackets.

Answer 3

[]=() they do the same thing, but are sometimes used instead of parenthesis to make things easier to look at

Answer 4

Notation for some kinds of things....

Answer 5

what does 2[-q+(-3)] mean ?

Answer 6

Same as 2( -q+(-3) )

Answer 7

ok so it will be -q + -6 ?

Answer 8

-2q - 6

Answer 9

?

Answer 10

You multiply everything by 2, not just the 3.

Answer 11

dont forget to multiply everything by 2

Answer 12

because of the distributive property of multiplication.

Answer 13

Quite right, however I am simply saying why multiply -3 and not q?