Question

Please help me, I'm really confused

f(x) = {3x^2 - 12x + 2
- 3x + 10

If you could show the work so I can understand it? Thanks!!

Answer 1

@satellite73

Answer 2

@jim_thompson5910

Answer 3

@radar

Answer 4

@wolfe8

Answer 5

what are the instructions? do you want to graph this?

Answer 6

what are you trying to do with it?

Answer 7

It just says to solve the system @jim_thompson5910 @satellite73

Answer 8

And then gives that system^^ @jim_thompson5910 @satellite73

Answer 9

oh ok
set them equal and solve for \(x\)

Answer 10

But what about the exponent of 2?

Answer 11

start with
\[3x^2 - 12x + 2= - 3x + 10\]

Answer 12

then set equal to zero via
\[3x^2-9x-8=0\] then if you are lucky it factors

Answer 13

Like foil?

Answer 14

it doesn't factor, use the quadratic formula

Answer 15

can you post a picture of the exact problem?

Answer 16

cause it looks like you have function notation there, not a system of equations

Answer 17

So it'd be \[9 \pm \sqrt{9^2 - 4(3)(-8)}\div(2)(3)\]

??

Answer 18

yes
or
\[\frac{9\pm\sqrt{177}}{6}\]

Answer 19

And how do you know if it is + or -?

Answer 20

but that is the solution to the system \[y=3x^2 - 12x + 2 \\
y=- 3x + 10 \]

Answer 21

wait what?

Answer 22

what you wrote does not look like a system of equations

Answer 23

you wrote something that looks like this \[f(x) = \left\{\begin{array}{rcc}
3x^2-12x+2 & \ \\
-3x-10&
\end{array}
\right.
\]

Answer 24

that is why i asked if you could post a picture