Here's the question you clicked on:

## alexsu22 Subract. 2 years ago 2 years ago

• This Question is Closed
1. Walleye

-

2. alexsu22

$\left(\begin{matrix}6x_2y \\ x^2+5xy-6y^2\end{matrix}\right)-\left(\begin{matrix}3x+2y \\ x^2+4xy-5y^2\end{matrix}\right)$

3. Walleye

do you know how to add and subtract vectors? $\left(\begin{matrix}a \\ b\end{matrix}\right) + \left(\begin{matrix}c \\ d\end{matrix}\right) = \left(\begin{matrix}a+c \\ b+d\end{matrix}\right)$

4. alexsu22

No i do not?

5. across

He literally told you how to up there.

6. Walleye

your a = 6x2y your c = 3x + 2y ... does this help at all?

7. alexsu22

Yes now i get it... and my bad across :/

8. alexsu22

I got it wrong i must have misplaced something...

9. Walleye

i bet you forgot to distribute the - sign

10. Walleye

$\left(\begin{matrix}6x2y - (3x+2y) \\ x^2+5xy-6y^2 - (x^2+4xy-5y^2)\end{matrix}\right)$

11. alexsu22

i think that is what i forgot...