Question

One of the solutions to x2 − 2x − 15 = 0 is x = −3. What is the other solution?

x = −5
x = −1
x = 1
x = 5

Answer 1

hmm how would i explain this properly

Answer 2

im not good at math and thats all i have left to do

Answer 3

i know the answer but umm idk how to explain it in a good way :/

Answer 4

i chose the answer B because .... life

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Answer 5

some parts of algebvra im good at others like this im not

Answer 6

nor is my spelling good

Answer 7

okay thats not correct try again :) which seems more reasonable

Answer 8

and its fine lol

Answer 9

i dont know i didnt have an algebra class for about three and a half months freshman year

Answer 10

because i wasnt in school

Answer 11

lemme try it again

Answer 12

one of the answers is 5

Answer 13

or d

Answer 14

hmmmm okay this is how i can easily explain it
x = [−b ± √(b2 − 4ac)]/2a

a = 1, b = 2, and c = −15. Thus:

x = [−2 ± √(22 − 4*1*{−15})]/2

x = [−2 ± √(4 + 60)]/2

x = [−2 ± √(64)]/2

x = [−2 ± 8]/2

The two solutions are:

x = −10/2 and x = +6/2

x = −5 and x = 3

Answer 15

yes correct :)

Answer 16

you get a medal
miss lady

Answer 17

thanks lol, you dont remeber me do u

Answer 18

i do

Answer 19

help with this one too please

Answer 20

Which represents the solution(s) of the system of equations, y = x2 – x + 1 and y = x? Determine the solution set by graphing.

(1, 1)
(0, 1) and (1, 1)
(0, 0) and (1, 1)
no solutions

Answer 21

just to make sure im doing this right i chose a
or (1,1)

Answer 22

mmkkk lemme see give me a sec to look it over

Answer 23

mkay

Answer 24

I'd have to say its B since it also levels out at 0,1 on the graph as well

Answer 25

ill look at it again
thank you
pm me if you want

Answer 26

mmhhm np and okay