Today’s official SAT question of the day is a math question that involves two expressions that have been set equal to each other. This medium-difficulty question looks tougher than it is, as long as we are careful with our signs and do not jump to conclusions. Let’s jump in.
√(x – a) = √(x + b)
First thing: square both sides to get rid of the silly radicals. Now we are left with:
x – a = x + b