Gropu like terms
(-1/2)x+(3/2)x-4x+3+5=
(2/2)x-4x+8=
1x-4x+8=
-3x+8
Sin x is possitive in two quadrants :
quadrant I and quadrant II
in quadrant I, cos x is positive
in quadrant II , cos x is negative
so i think the answer is : quadrant II
hope this helps
780,120?
Attention:check before using this answer it may not be right.
Thank you.
Three solutions:
x=0
x=7/2
x=-6
Answer:
x=7
Step-by-step explanation: