1
Q
what does completing the square involve?
A
put into brackets (with the x) - squaring it - than + or - a number
2
Q
in simultaneous equations:
two equations have the same sign =
two equations have different signs
A
same = - different = +
3
Q
when you have 3 and 4 in a simultaneous equation, what do you do?
A
bigger - smaller
