Answers to Practice Questions for MTE 6 – Exponents, Factoring

Answers to Practice Questions for MTE 6 – Exponents, Factoring, and Polynomial
Equations
1. 7x11
17. 30 x4  13x 2  2
2.
3.
18. 7 x3  2 x 2  11x  24
v4
25
19. 5x4  20 x3  8x2  28x  21
s12t 2
2 7
20. 3g h
4.
1
64
21.
22. (4 y  3)( y  7)
2
5w3 z 3
5.
4
23. (z+6)(z+8)
6.
1
16x36 y 32
7.
2b14
27 a14
24. (m – 15)(m + 8)
25. 3(z+9)(z+1)
26. prime
8. A) 1.79245283 107 ; 17924528.3
B) 5.58 101 ; 0.558
27.
28. (3m  4n)(9m  12mn  16n )
2
9. Binomial
29. ( z  5)( z  5 z  25)
10. 22x
30. x=0, 38
11. 15y
7
12. 5 z 2 
2
31. a = -4
3
z 1
2
13. 15x – 2
14. -2x – 3
15. 45x 2  89 x  42
16. 3x3  14 x2  2 x
32. x=0, 9, 8
33. t=6 sec
34. 9 or 11 cameras
2

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