$3x^{2} - 4xy + 2y { }^{2} - 1 \\ 3 \times ( - 3) { }^{2} - 4 \times ( - 3) \times 5 + 2 \times 5 {}^{2} - 1 \\ (3 \times 9) - ( - 60) + 50 - 1 \\ 27 + 60 + 50 - 1 \\ 165$

8 0

1 year ago

Read 2 more answers

I need help with this

noname [10]

Answer:

with what

Step-by-step explanation:

5 0

2 years ago

Multiply (x +8)(x - 2) <br>i need awnsers asap

frozen [14]

Answer:

$x^{2}$ +6x-16

Step-by-step explanation:

(x+8)(x+−2)

=(x)(x)+(x)(−2)+(8)(x)+(8)(−2)

=x^2−2x+8x−16

=x^2+6x−16

4 0

2 years ago

If point A is located at (-7,5) and is rotated around 270 clockwise about the origin, then point A' is located at...

jonny [76]

Answer:

B.(-5,-7)

Step-by-step explanation:

According to the rule of rotation if you were to have a 270* clockwise you would first switch the x and y values. Ex: (-7,5) -> (5,-7). next you would make the original y coordinate a negative. (5,-7) -> (-5,-7).

6 0

2 years ago