Question

pleeeeeeaasse help

Solve x^2+4x-6=0 with the quadratic formula!!

Answer 1

The quadratic formula is

\[\Large x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 2

a = 1
b = 4
c = -6

Answer 3

In this case we have x^2+4x-6

which is in the form ax^2+bx+c

so

a = 1
b = 4
c = -6

Plug those values into the formula and simplify to get your answer

Answer 4

factoring and then testing with FOIL (First Outer Inner Last):
-6 = -1 * 6 = 1 * -6 = -2 * 3 = 2 * - 3 (4 possibilities of factors)
(x - 1)(x + 6) --> outer and inner add to 5, so not work
(x + 1)(x - 6) --> outer and inner add to -5, so not work
(x - 2)(x + 3) --> outer and inner add to 1, so not work
(x + 2)(x - 3) --> outer and inner add to -1, so not work

we are going to have to use the quadratic formula:
x^2 + 4x - 6 = 0 is of the form ax^2 + bx + c = 0,
where a = 1, b = 4, and c = -6

Answer 5

wait

Answer 6

i know that but then what

Answer 7

Jim virtually gave you the answers on a silver platter. What more do you need?

Answer 8

\[\Large x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

\[\Large x=\frac{-4 \pm \sqrt{4^2-4*1*(-6)}}{2*1}\]

simplify to get your answer

Answer 9

-6?

Answer 10

What is \(\Large 4^2-4*1*(-6)\) equal to?

Answer 11

= 0

Answer 12

hum what... I'm confused

Answer 13

tanya i dont even know what you just said looool

Answer 14

lol I said the answer is 0

Answer 15

hmmm i dont its 0

Answer 16

\[ -4 \pm \frac{ \sqrt{30}}{ 2 }\]

Answer 17

should be 40, not 30

Answer 18

yeah sorry 40

Answer 19

Simplify

\[\Large \frac{-4 \pm \sqrt{40}}{ 2 }\]

and you have your two exact solutions

Answer 20

-10?

Answer 21

there will be 2 answers

Answer 22

-10 and -6?

Answer 23

nope

Answer 24

DANGGFK

Answer 25

im failing

Answer 26

what can you get from \[\sqrt40\]

Answer 27

you can get \[2 \sqrt 10\]

Answer 28

\[-4 \pm 2\frac{ \sqrt 10 }{ 2}\]

Answer 29

i know that you can do it from there!!

Answer 30

Next step

Answer 31

ohh

Answer 32

this will give you a boost
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Answer 33

Lmao

Answer 34

Dude, refresh if you clicked it :)

Answer 35

oh my godddd..

Answer 36

i literally just screamed

Answer 37

OMG Hahaha

Answer 38

that was scary

Answer 39

This is why you don't click everything :) Curiosity errrr..!!!

Answer 40

curiosity killed the cat but satisfaction brought it back

Answer 41

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Answer 42

woah what haha

Answer 43

lol