Write the thing spaced out:
4a <u>-5b</u> +6ab <u>-8b</u> -3a
The signs (+,-) are assigned to the numbers it is in front of.
We minus the "like" terms:
4a - 3a = 1a
<u>-5b - 8b = -13b
</u>+6ab = +6ab
Put them all together:
1a - 13b + 6ab
The answer for, "4a - 5b + 6ab - 8b - 3a" = "1a - 13b + 6ab"




Answer: B) (2; -2), (4; -1)
Answer:
y = 90
Step-by-step explanation:
Since, e || f and a || b
Therefore, quadrilateral so formed is a rectangle.
Each angle of a rectangle is right angle.

Step-by-step explanation:
F respiratory system only remove carbon dioxide from the body