Question

use quadratic formula
2x^2-x=-1

Answer 1

X = -1/2 AND X = 1

Answer 2

i think that yu are suppose tu add the 1 tu the other side tu make the equation equal 0

Answer 3

do u need steps??

Answer 4

for quaadratic equation of form ax^2 + bx + c = 0

roots by quadratic formula are got as follows:

-b +/- root(b^2 - 4ac)
x = -----------------------
2a

Answer 5

this equation has no real roots
have u familiar with complex numbers donnice?

Answer 6

but what wud the solutions be in terms of i

Answer 7

@jimmy
why will it not hv real roots????

Answer 8

it has x = 1 and x= -1/2

Answer 9

http://www.mathway.com/problem.aspx?p=algebra this helps a great deal with figuring things out.

Answer 10

oh - i'll check again hark

Answer 11

@jimmy

i saw my mistake, i missed the minus sign in front of 1 on the RHS. SORRY!!

Answer 12

it changes to 2x^2 - x + 1 = 0 right?

Answer 13

oh ok!!

Answer 14

its roots will be

1 + 7i 1-7i
------ and ------
4 4

Right jimmy????

Answer 15

maybe donnice made a typo with the question - can u check it out donnice?

Answer 16

right hark

Answer 17

thanks harkirat

Answer 18

U R WELCOME......