We have the following equation:
x2 + 4x = - (y2 - 20)
Let's review step by step:
step 1:
x2 + 4x = -y2 + 20
Answer: OK
step 2:
x2 + 4x + 4 = -y2 + 20 - 4
Answer: Wrong
The correct step is:
x2 + 4x - 4 = -y2 + 20 - 4
Or equivalently:
x2 + 4x + 4 = -y2 + 20 + 4
Answer:
he did make an error in his work in step 2
The answer for this question is 822
Answer:
-7y
Step-by-step explanation:
-2y-7y=
-9y+8y=
-y+y=
0-7y=
-7y
It is 4 my dude. Or 22 if you’re into the memes.
