SAT Mc Graw Hill 2011

314 MCGRAW-HILL’S SAT

Concept Review 4: Working with Roots

1. List the first 10 perfect square integers greater than 1: _____


2. How can you tell whether two radicals are “like” terms?


3. An exponential is a perfect square only if its coefficient is and its exponent is .

For questions 4–7, state whether each equation is true (T) or false (F). If it is false, rewrite the expression on the right
side to correct it.

4. 5.

6. 7.

8. If x^2 =25, then x= or . 9. If x^2 = then x=__.

Simplify the following expressions, if possible.

10. = 11. =

12. = 13. =

14. = 15. =

16. = 17. =

18. = 19. 22 418=

2

+

12

2

()+

63 + ()() 3572

512 4 27−^552

23

3

()()gg^55 ()

610

35

mn m

n

57 87−

644

393 81 xx^2 = 9

5

()xxx=^2

(^23) ()× xx=6 2 32 58 132+=