All SAT Math Resources
Example Question #2 : Squaring / Square Roots / Radicals
Simplify the radical.
We can break the square root down into 2 roots of 67 and 49. 49 is a perfect square and reduces to 7.
Example Question #3 : Squaring / Square Roots / Radicals
If you don't already have the pattern memorized, use FOIL. It's best to write out the parentheses twice (as below) to avoid mistakes: