Question

[8.02] Factor completely: 2x3 + 6x2 + 10x + 30

2(x3 + 3x2 + 5x + 15)
2[(x2 + 5)(x + 3)]
(2x2 + 10)(x + 3)
(x2 + 5)(2x + 6)

Answer 1

11. [8.03] Factor completely: 2x2 − 2x − 24

(2x − 6)(x + 4)
(2x − 8)(x + 3)
2(x − 3)(x + 4)
2(x − 4)(x + 3)
12. [8.04] Identify the factors of 3a2 − 7a − 20.

(3a − 5)(a + 4)
(3a + 5)(a − 4)
(3a − 10)(a + 2)
(3a + 10)(a − 2)
13. [8.04] Factor completely: 6x2 + 21x + 9

3(2x + 1)(x + 3)
3(2x + 1)(x + 9)
(2x + 1)(3x + 9)
(2x + 3)(3x + 3)
14. [8.04] What are the factors of 4x2 + 23x − 6?

(4x − 6)(x + 1)
(4x − 1)(x + 6)
(4x − 2)(x + 3)
(4x − 3)(x + 2)
15. [8.06] Determine which polynomial is a perfect square trinomial.

4x2 − 12x + 9
16x2 + 24x − 9
4a2 − 10a + 25
36b2 − 24b − 16
16. [8.06] Factor completely: 2x2 − 16x + 32

2(x + 4)(x + 4)
(2x − 8)(x − 4)
(2x − 16)(x − 2)
2(x − 4)(x − 4)
17. [8.06] What are the factors of 4x2 + 28x + 49?

(4x + 7)(x + 7)
(4x − 7)(x − 7)
(2x + 7)(2x + 7)
(2x − 7)(2x − 7)
18. [8.06] Sam decides to build a square garden. If the area of the garden is 4x2 − 20x + 25 square feet, what is the length of one side of the garden?

(5x + 2) feet
(5x − 2) feet
(2x + 5) feet
(2x − 5) feet
19. [8.07] Determine which polynomial is a difference of two squares.

a2 + 36
a2 − 36
a2 − 12
a2 + 12
20. [8.07] Find the factors of y2 − 25.

(y + 5)(y + 5)
(y − 5)(y − 5)
(y − 5)(y + 5)
Prime

Answer 2

plz help i have 30 mins left to complete

Answer 3

wow.so many questions.:P

Answer 4

yup its outa 50 i did the rest

Answer 5

ok.for 8.02 its c

Answer 6

thaks i think 12 is b im not sure

Answer 7

yes its b for 12

Answer 8

i think 19 is c

Answer 9

idk abt 19

Answer 10

20 is c

Answer 11

thanks

Answer 12

all others done?

Answer 13

need 11 14 15 16 17 18

Answer 14

14 is b

Answer 15

15 a

Answer 16

yes bt not sure

Answer 17

i think 16s D

Answer 18

16 is b

Answer 19

i gtg now/bye

Answer 20

okay thanks