8=-1/5(2)+3
8=-2/5+3
8=2 3/5
The equation is incorrect
AC= √CD^2+AD^2
AC= √AB^2+BC^2
Those two are true
See explanation in photo below
Good luck
Answer:
12cm^2
Step-by-step explanation:
1/2 x diagonal x diagonal
-2x cube + 2x cube makes 0, so u can delete it,
then 6x + 10x makes 16x,
so the final answer should be 16x+7xtothepower4