Question

Use the quadartic formula to solve the equation below.
2x^2+13x=4

Answer 1

http://1.bp.blogspot.com/_1-QGTvcr_Ao/TQR2I3wvruI/AAAAAAAAABk/J2reKuLyFHw/s1600/Quadratic_Formula.jpg

Answer 2

Do you mean quadratic? Use the formula and plug in the coeff of the x^2 for a, the coeff of the x term for b and the coeff of the constant term for c.
2x^2+13x=4 ---> 2x^2+13x-4
2x^2--->a=2
13x------>b=13
-4---->c=-4

Answer 3

-b + or - sqrt(b^2-4ac)
all divided by
2a

Answer 4

Hold on i have chocies

Answer 5

it would be better to say plus and minus, you get two answers

Answer 6

they should both work as solutions to the equation

Answer 7

If you're doing homework they probably want both answers.

Answer 8

A.) x= 13+√201
--------------
2
B.)x=-13+√177
----------------
4
C.) x= -13+√ 201
----------------
2
D.) x= -13 +√ 201
-----------
4

Answer 9

AND + HAS a line under it \[\pm\]

Answer 10

Close, not quite.

Answer 11

substitute your values in the quadratic formula and see which is the correct one.

Answer 12

B?

Answer 13

what's the difference between C and D

Answer 14

no.

Answer 15

c has a 2 and d has a 4

Answer 16

Well the answer is exactly the same as D, only it's + and - sqrt201

Answer 17

katie, there is no point guessing the answer. take some time and substitute your vlues into the quadratic equation. that will give you the correct answer.

Answer 18

so its D?

Answer 19

If the + is a + - line thing, yes

Answer 20

±

Answer 21

yes it has this \[\pm\] under it so its D

Answer 22

Yeah, i mean it's exactly the same as the formula, it just matters that you plug in the right numbers.

Answer 23

okay thanks

Answer 24

np

Answer 25

Check your work on http://www.wolframalpha.com/input/?i=2x^2%2B13x%3D4+quadratic+formula

Answer 26

I've gotta go, goodluck

Answer 27

Thanks