Answer:
y= 7 and -1
Step-by-step explanation:
Answer:
2/4
Step-by-step explanation:
Answer: C
Step-by-step explanation:
8 * 8 = 64
x = 8
Hi there!
First we need to remember the following.

Now substitute both of the formulas.

Work out the parenthesis.

And finally collect terms.

~ Hope this helps you!