Question

What method(s) would you choose to solve the equation 2x² +4x - 3 = 0

Answer 1

i would use quadratic formula because this isn't factorable...i dont know with you though

Answer 2

what do you mean?

Answer 3

what are the factors of 3?

Answer 4

what are the factors of -3*

Answer 5

haha =)) that's fine..wit practice you'll get it ^_^

Answer 6

you dont need further help anymore?

Answer 7

regarding this problem i mean

Answer 8

sure sure! ^_^

Answer 9

ahh i see...well do you know the concept of the discriminant?

Answer 10

\[\huge b^2 - 4ac > 0 \rightarrow \text{2 real solutions}\]
\[\huge b^2 - 4ac = 0 \rightarrow \text{1 real solution}\]
\[\b^2 - 4ac < 0 \rightarrow \text{no real solution}\]
familiar?

Answer 11

that last line was \[\huge b^2 - 4ac < 0 \rightarrow \text{no real solution}\]

Answer 12

does that sound familiar?

Answer 13

haha it's with experience :) it just becomes natural

Answer 14

so there will be 2 real solutions when b^2 - 4ac

so let's look at our expression x^2 + 3x + j

what's a?

Answer 15

what's a in x^2 + 3x + j?

Answer 16

okay..remember the general form \[ax^2 + bx + c\]
a is the number beside x^2

so what's a in x^2 + 3x + j?

Answer 17

a is the number beside x^2

3 is beside x NOT x^2

Answer 18

haha that's fine..get back to this topic when you want to

Answer 19

lol deleted all your replies?

Answer 20

it's actually pretty obvious you know..not the cleverest move you could've made