Practice Quiz

ASVAB Practice Math Questions

Category - Math - Hard

Start a Study Session Sign up for Question of the Day
(1+√3)(1-√3)=
  1. -3
  2. -2
  3. 4
  4. 3-2√3
Explanation
Answer B: a2-b2=(a+b)X(a-b). So the given value is equal to 12-(Ѵ3)2=-2

Key takeaway: The square root of the numbers like √3 is a decimal number and expression would require long calculation if we put in the given. So look for a way to attack such problems other way than straight arithmetic calculation. You should be able to find application of simple algebraic formulae.
Previous Next
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz