Question

3/30

Answer 1

x
=
−
4
±
√
14

Explanation:
First add
2
to each side so that the equation is in standard form:
y
=
a
x
2
+
b
x
+
c
.

x
2
+
8
x
+
2
=
0

The quadratic formula is
−
b
±
√
b
2
−
4
a
c
2
a
.

Here,
a
is
1
,
b
is
8
, and
c
is
2
. Let's plug these numbers into the quadratic formula.

−
8
±
√
8
2
−
4
⋅
1
⋅
2
2
⋅
1

−
8
±
√
64
−
8
2

−
8
±
√
56
2

−
8
±
2
√
14
2

−
4
±
√
14

x
=
−
4
±
√
14

Answer 2

You would have to distrbute. Do -6 times -x then -6 times -2= then other side do 8 times x and 8 times 2. Subtract 12 from both sides. Then simplify by subtracting the numbers that don't gave an x. And then viola you have your answer.

Answer 3

wait what that does not make sence to me

Answer 4

Sorry. ummm how can I explain it better?

Answer 5

well how am i suppse to times -x and so on when i dont know how to do that

Answer 6

So -6 multiply that by -x so that would just be positive 6x

Answer 7

a negative times a negative is positive. A positive times a negative is negative. And a number times a variable is that number with the variable.

Answer 8

ok i got 4 for my answer when i subtract 6x-2

Answer 9

what do i do next

Answer 10

no you do -6 times -2. wich would give you 12.

Answer 11

so then you do 8 times xthen 8 times 2

Answer 12

8*x i believe is 8x and then 8*2=16

Answer 13

correct.

Answer 14

so 6x+12=8x+16. you subtract 12 from 16. then get ur answer. then you subtract 8x from 6x or 6x from 8x which ever way you want to do it. then divide the answers.

Answer 15

so the answer is 2x

Answer 16

negative 2x