Question

Help please.

Answer 1

you should factor this (x^2-1) first so you can cancel out some stuff

Answer 2

difference of square \[\huge\rm (a^2 -b^2) = (a+b)(a-b)\]

Answer 3

can you factor \[\huge\rm (x^2 -1 )= ???\]

Answer 4

I don't know

Answer 5

okay so basically difference of square is to take square root of first term and square of 2nd term you can only apply that method if there is NEGATIVE sign in the original question

you should get 2 parentheses for the final answer
one should negative and one should positive