Answer:
-3
Step-by-step explanation:
you start with the parentheses -16-9 turns into -16 + (-9)
and then you try to solve everything.
-3 + (-4)= -7
-3 times -4=12
negative plus a negative is still a negative. negative times a negative is a positive.
Answer:
-35, -20
Step-by-step explanation:
Answer:
She made a mistake in step 3
She simplified the 3^-8 incorrectly
she should've added them
the answer is 3^24 if you need that
Step-by-step explanation:
using the following rule

we can see that she made a made a mistake in step 3 when simplifying
she should've added 3^8 to 3^16 rather than subtracting them
You change six to a negative then add it to 14 which is Which is eight then divide 8 by 1 and the answers eight