Question

check answers plz!

Answer 1

@AriPotta

Answer 2

13. [8.04] Factor completely: 8x2 + 20x + 8 (4 points)
(2x + 8)(4x + 1)
4(2x − 2)(x − 1)
4(2x + 1)(x + 2)
(8x + 4)(x + 2)
14. [8.04] What are the factors of 3x2 + 23x − 8? (4 points)
(3x − 4)(x + 2)
(3x − 2)(x + 4)
(3x − 8)(x + 1)
(3x − 1)(x + 8)
15. [8.06] Determine which polynomial is a perfect square trinomial. (3 points)
36x2 − 18x − 9
4a2 − 28a − 49
25b2 − 20b + 4
4x2 − 6x + 9
16. [8.06] Factor completely: 2x2 − 28x + 98 (4 points)
2(x + 7)(x + 7)
2(x − 7)(x − 7)
(2x − 49)(x − 2)
(2x − 14)(x − 7)
17. [8.06] What are the factors of 4x2 + 28x + 49? (4 points)
(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 + 28x + 49 square feet, what is the length of one side of the garden? (4 points)
(2x + 7) feet
(7x + 2) feet
(2x − 7) feet
(7x − 2) feet
19. [8.07] Determine which polynomial is a difference of two squares. (3 points)
b2 − 14
b2 + 14
b2 − 49
b2 + 49
20. [8.07] Find the factors of m2 − 9. (3 points)
(m − 3)(m − 3)
(m + 3)(m − 3)
(m + 3)(m + 3)
Prime
21. [8.07] Identify the factors of x2 + 25y2. (4 points)
(x + 5y)(x + 5y)
(x + 5y)(x − 5y)
(x − 5y)(x − 5y)
Prime
22. [8.07] Factor Completely: 25x2 − 9 (4 points)
(5x + 3)(5x − 3)
(5x − 3)(5x − 3)
(5x + 1)(5x − 9)
(5x − 1)(5x − 9)

Answer 3

13. d
14. b
15. c
16. b
17. c
18. a
19. c
20. b
21. d
22.b

Answer 4

13 is wrong

Answer 5

is it b?

Answer 6

no

Answer 7

14 is wrong too

Answer 8

13 must be c then

Answer 9

and is 14 a?

Answer 10

13 is c

14 is not a

Answer 11

14 is b

Answer 12

....no.

Answer 13

then its d?
tht ones hard lol

Answer 14

do you want me to show you?

Answer 15

sure

Answer 16

so the answer is d. (3x - 1)(x + 8)