All PSAT Math Resources
Example Questions
Example Question #1 : How To Subtract Square Roots
Evaluate:
Possible Answers:
None of the available answers
Correct answer:
Explanation:
Let us factor 108 and 81
Example Question #3 : Basic Squaring / Square Roots
Possible Answers:
Correct answer:
Explanation:
Step one: Find the greatest square factor of each radical
For this is , and for it is .
Therefore:
Step two: Simplify the radicals
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