Is there suppose to be a picture attached?
Answer:
Step-by-step explanation:
by synthetic division
3) 1 -1 -11 15
| 3 6 -15 (add)
____________
1 2 -5 |0
x²+2x-5=0
Answer: x = 7
Step-by-step explanation:
The two angles depicted in the image are vertical angles since they are a pair of opposite angles made by two intersecting lines. Vertical angles are always congruent meaning that the two angles in the picture are equal. Therefore:
9x + 16 = 12x - 5
-3x + 16 = -5
-3x = -21
x = 7
Just pretend f(x) is y bc they mean the same thing
Soo if x=-1
5(-1)-7=y
-5-7= -12