If 36x^3a+45xa^2=9a() then 9a is a factor the other factor, (), is the left side divided by 9a
(36x^3a+45xa^2)/(9a)
4x^3+5xa
So the () term is (4x^3+5xa)
For question 1. Keep the middle point of your protractor at point D. This u can find measure of angle BDC....
Second part :to find angle BAC keep the middle point of your protractor at point A.
Hope this helps u...!
Y=4
y=1
y=-2
y=-5
y=-8
i answer them according to the arrangement top to bottom
In the triangle...the length of the longer side is tan 60 multiply by the shorter leg. Tan 60 = sq root 3...thus
Longer side = sq root 3 times the length of the shorter leg