Standard form is
where A is a positive number.
Add -2x2 to both sides
Rearrange terms in descending order on the left.
Right side becomes 0:
Since first term is negative, multiply every term by -1:
<--- that's in standard form. That's
all you were asked to do. But
I'll go ahead and solve it.
Factor the left side:
Use zero-factor property:
; ;
Edwin