The answe is 8 + (-14) = -6
...
Answer:
one solution; x= -28/10
Step-by-step explanation:
Yes, it is similar.
The scale drawing and the actual cover are similar because the scale drawing has been formed by shrinking the cover. The scale factor is 1/11, centered at the origin. This means that the ratio of the sides of the actual cover to the corresponding sides of the image is constant and equivalent to 1/11. Therefore, the drawings are similar.
4a^2+7ab-b^2
Step-by-step explanation:
Add the first two equations together:
3a^2-ab-2b^2
+ 2a^2+5ab-3b^2
---------------------------
5a^2+4ab-5b^2
Subtract that answer from the remaining trinomial:
5a^2+4ab-5b^2
- a^2-3ab-4b^2
--------------------------
4a^2+7ab-b^2
