Question

Determine which binomial is a factor of -2x^3 + 14x^2 - 24x + 20

A.) x + 5
B.) x + 20
C.) x - 24
D.) x - 5

Answer 1

its mcq so its easy to solve
X is definitely wrong coz X is not the same as x

Answer 2

if (x+5) is a factor, then x = -5 would make the equation 0

Answer 3

if (x-5) is a factor, then x= 5 makes the equation 0

Answer 4

substitute x = 5 and x = -5 see which one makes it 0

Answer 5

Neither of them do.

Answer 6

check again

Answer 7

There all 4 little x's I just didn't mean to make the two middle one's capital x's.

Answer 8

So I'll try the other two to see which one is right

Answer 9

i managed to find the answer by substituting a value

Answer 10

try x = 5 again

Answer 11

ok, I will

Answer 12

When I put the equation like this -2(5)^3 + 14(5)^2 - 24(5) + 20 I get 100 + 1900 - 120 + 20 and when you add it up it equals 4900

Answer 13

Is the answer x = 5 ?

Answer 14

yes, x=5 is the root , so x-5 is the factor.

Answer 15

So the answer is D ? x - 5

Answer 16

yup.

Answer 17

I wish I understood how you got that bc I tried to plugg 5 into where the x's are and I got the answer 4900 not 0

Answer 18

5^3 = 125
125*2 = 250

Answer 19

5^2 = 25
25*14=350

Answer 20

24*5=120

Answer 21

Ok, thanks :)

Answer 22

got it ?