book Maths Puzzle Numerical Ability

(x+2)(x-2)?

Read Solution (Total 0)

book Other Question

the conjugate of
sqare_root(2)-square_root(3) is:
square_root(2)+square_root(3).

But can it be:
-sqare_root(2)-square_root(3)? how can i graph x-3y=6 on a graph