Question

help please

Answer 1

@jhonyy9

Answer 2

2x^2 +2x -2 = 0 so what you see there common in every 3 terms ?

Answer 3

Um there is a 2

Answer 4

yes so factoriz out the 2 and so what will get ?

Answer 5

factorize out the 2?

Answer 6

yes from every 3 terms and so what will get ?

Answer 7

2(---)=0

Answer 8

what will be inside parantheses ?

Answer 9

one quadratic - do you can write me this quadratic please ?

Answer 10

2(x^2 +x -1) =0

Answer 11

(2x^2 + 2x)

Answer 12

well i was way off

Answer 13

not what you wrote than you factoriz out from every 3 terms the 2

Answer 14

so now you need to solve this quadratic - do you know it how ?

Answer 15

no

Answer 16

using discriminant

Answer 17

x^2 +x -1=0

what is formula of discriminant ?

Answer 18

D = b^2 -4ac

so D in this case how many will be ?

Answer 19

are you here ?

Answer 20

D = 1 -4(1)(-1) = ?

Answer 21

b^2 =1

Answer 22

D = 1+4= ?

Answer 23

answer is the second one

Answer 24

The answer is b

Answer 25

divide thru by 2. So the equation is x^2 + x -1 = 0. Invariably, a=1, b=1, c=-1

Using the general formular -b + sqrt(b^2-4ac)/2a or -b-sqrt(b^2-4ac)/2a

Answer 26

substitute the values of a b and c...then you are good to go