According to the synthetic division below, which of the following statements are true?
Check all that apply.
3)2
-2
6
-12
12
0
2
4
A. (2x2 - 2x - 12) = (x-3) = (2x + 4)
B. (x-3) is a factor of 2x2 - 2x - 12.
O C. (x+ 3) is a factor of 2x2 - 2x - 12.
D. The number 3 is a root of F(x) = 2x2 - 2x - 12.
E. The number -3 is a root of F(x) = 2x2 - 2x - 12.
F. (2x2 - 2x - 12) + (x + 3) = (2x + 4)
SUBMIT

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

answer: 1, 3 and 5 are correct

step-by-step explanation:

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1